The 20 Best LED Grow Lights for Cannabis 2020

Engineered using the science of nature, full-spectrum LED grow lights are the best option for growing cannabis indoors.

These lights are designed to simulate natural sunlight. This feature ensures all of your marijuana plant light requirements are met.

Unlike conventional grow lamps that provide your plants with only some of the wavelengths of natural sunlight. Full-spectrum LEDs deliver all the useful wavelengths.

The choice of high-quality full-spectrum LED grow lights is huge. You must be very selective to pick a model that will fully meet your cannabis growing needs.

We did detailed research of the most popular products on the market and we found the following ten top models that come highly recommended for indoor growing.

Top 20 Best LED Grow Lights for Cannabis

#1 WHOSLED 1200W Full Spectrum LED Grow Light

View on Amazon

Are you new to indoor cannabis growing? You need the WHOSLED 1200W Full Spectrum LED Grow Light for illuminating your indoor grow room.

The light measures 15.7 inches long, 8.3 inches wide, and 2.4 inches thick. It is fitted with three base fans, a power outlet, and veg and bloom switches.

The light is purely handmade. The LED chips are individually soldered for durability. Unlike traditional grow lamps, this model has a durability of more than 60000 hours.

This model comes with three modes of operation, including bloom (seedling/germination), veg (vegetative growth), and veg plus bloom (flowering).

The recommended height for the bloom is 26 to 30 inches, for the veg is 20 to 26 inches, and the veg plus bloom is 18 to 24 inches.

What makes this light quite impressive is its PAR coverage. At 24 inches you get an effective PAR of 488 μmol/m2s, which is the minimum light you need for moderate weed yield.

You can increase your indoor marijuana yield by lowering the light to 18 inches. At this height, you get optimum lighting of 735 μmol/m2s.

The light also has a superheat dissipation system. Heavy-duty heat sinks and the high-speed cooling fans maintain optimal operating temperatures.

Pros:

• Blue, red, UV, IR and white wavelengths simulate natural light
• UV wavelength activates your cannabis’ natural defenses
• Veg and bloom switches are operated independently
• Soldered LEDs are highly durable with a lifespan of over 60000 hours
• Core coverage is increased with a 140-degree wide-angle design
• Superheat dissipation system
• Comes with a 3-year warranty and 90 days return guarantee

Cons:

• Doesn’t come with a daisy outlet

#2 GREENGO 1200W Full Spectrum LED Grow Light

View on Amazon

Do you want a lighting system that boasts high indoor marijuana growth? Look no further than the GREENGO 1200W Full Spectrum LED Grow Light.

It is a large light that measures 17 inches long, 8 inches wide, and 2.2 inches thick. At 6 pounds, the light is pretty heavy and durable.

The heavy-duty construction features three base fans, upgraded heat sinks, veg and bloom switches, a power socket, and a daisy chain socket.

Triple-chip LEDs are more efficient and brighter compared to double-chip LEDs. The triple-chip LEDs are engineered to maintain a superior balance of PAR output and coverage.

The LEDs also feature a more zen diode design. This design ensures that one damaged LED does not affect the function of the rest.

The veg mode comprises of blue and white LEDs with a spectrum that ranges from 430 to 660 nm. This mode is suitable for seedlings and young veg growth.

The bloom mode consists of red and white LEDs with a spectrum that ranges from 430 to 740 nm. This mode is ideal for flowering and blooming.

This is a very powerful light with high PAR values. According to the manufacturer’s PAR chart, the light is capable of giving a PAR of 417 (minimum for weed growing) at a height of 79 inches.

The cooling system is remarkable. The upgraded aluminum heat sinks and the three high-speed cooling fans ensure there is superior heat dissipation.

Pros:

• Triple-chip LEDs are more powerful than double chips
• Zener diode technology ensures one damaged diode doesn’t affect the rest
• Veg and bloom switch for the effective operation
• Energy-efficient light that only consumes 248 watts
• High PAR values that boost high yields
• A very efficient cooling system that maintains optimum temperatures
• It is timer controllable
• Daisy chain socket allows you to connect more units

Cons:

• The available power cord may be shorter for some growers

#3 Exlenvce 1200W Full Spectrum LED Grow Light

View on Amazon

The Exlenvce 1200W Full Spectrum LED Grow Light is a technological lamp designed for indoor growers. It is a good candidate for indoor cannabis growing.

The light is fitted with 15W triple-chip LEDs, which make the grow lamp brighter and energy-efficient compared to conventional two-chip LEDs.

It has a sturdy body that measures 15.8 inches long and 8.2 inches wide. It has separate on/off bloom and veg switches.

The veg channel uses a full spectrum for seedling germination and young vegetative growth. This channel only consumes 155 watts.

The bloom channel uses more red wavelengths to mimic summer lighting for flowering. The bloom mode is more energy-efficient, consuming only 80 watts.

You can also run both channels together to enhance maximum growth for higher yields. The light consumes only 235 watts when both switches are on.

It has a maximum coverage of 5.9 feet and a core coverage of 4.9 feet. However, the effective coverage depends on the height of the light.

The PAR values are remarkably high. At 24 inches high, you get an effective PAR of 539 μmol/m2s for optimal indoor marijuana growth.

With three high-speed base fans and upgraded heat sinks, the light never runs excessively. But you are advised to run it for roughly 15 to 18 hours a day.

Pros:

• Triple-chip LED technology is brighter and more energy efficient
• Double switch design allows for easy operation
• Veg and bloom channels use full spectrum for optimum performance
• Has a large core coverage
• Provides an effective PAR of 539 at 24 inches
• The superior cooling system maintains optimum temperatures
• Daisy chain outlet for adding more units
• Timer controllable

Cons:

• Adjustable rope clip hangers are not provided

#4 TOLYS 1000W Full Spectrum LED Grow Light

View on Amazon

The TOLYS 1000W Full Spectrum LED Grow Light is the best light for supplementing absorbable light for all stages of your indoor cannabis growth.

The light measures 13 inches long, 7 inches wide and 2 inches thick. The sturdy design comes with a power outlet, a daisy chain, a base cooling fan, veg/bloom switches, and hanging holders.

TOLYS uses double-chip LEDs that are bigger, brighter and more energy-efficient than conventional single-chip LEDs.

The veg channel promotes seedling germination and it contains 430 to 660 nm. The bloom mode promotes plant flowering and it contains 430 to 740 nm.

You can also turn both the veg and bloom switches on during flowering and fruiting to maximize growth. The IR wavelength usually appears dimmer, but it’s very effective.

The light is compact and only suitable for small grow areas. It provides a core coverage of 2 by 2 feet for seedlings, and 1.5 by 1.5 for vegetative and flowering.

The recommended height for germination is 24 to 30 inches, for seedling is 24 inches, for veg growth is 18 to 24 inches, and for bloom is 18 inches.

The cooling fan and upgraded heat sink constitute a powerful heat dissipation system that keeps the environment cool.

Pros:

• Double-chip LEDs are brighter and energy-efficient
• Veg and bloom channels can be operated independently
• Veg mode boosts germination and bloom boosts flowering and fruiting
• Full-spectrum includes IR wavelengths for optimum growth
• Superior cooling fan and heat sinks maintain optimum temperatures
• Daisy chain outlet allows you to connect more units

Cons:

• Daisy chain connection tends to reduce fan speed

#5 Yehsence 1500W Full Spectrum LED Grow Light

View on Amazon

The Yehsence 1500W Full Spectrum LED Grow Light has been a remarkable choice for more than three hundred indoor growers.

It measures 15.7 inches long, 8.2 inches wide and 2.9 inches thick. It comes with a US power socket, a daisy chain socket, veg and bloom switches, and three base fans.

The veg channel uses a full spectrum of 430 to 660 nm for germination; while the bloom channel uses a full spectrum of 430 to 740 nm for flowering and fruiting.

Unlike conventional grow lights that come with double-chip LEDs, the Yehsence comes equipped with 15 watts triple-chip LEDs that are more energy-efficient and brighter.

The light also features Zener diode technology, which protects the LEDs from each other. One damaged LED does not affect the rest.

What’s amazing about this light is the high PAR output. At 24 inches, the light is capable of delivering 594 μmol/m2s.

The maximum coverage area is 6.5 by 6.5 feet, but its core coverage is 5.4 by 5.4 feet. The lamp only consumes 265 watts, making it a suitable replacement for MH, HIDs, and HPS.

Daisy chained cord is universal with the power cord and allows you to connect three units at the same time.

Pros:

• Triple-chip LEDs are much brighter and more energy saving
• Veg and bloom channels use full spectrum for optimal growth
• High and effective PAR of 594 at 24 inches
• Zener diode protect each LED to expand the lifespan
• Daisy chain outlet is universal with the power cord
• Powerful heat dissipation and cooling
• Timer controllable

Cons:

• Can only connect three units at a time

#6 King Plus 600W Full Spectrum LED Grow Light

View on Amazon

If you are looking for a high performing grow light at an affordable price range, you should look no further than the King Plus 600W Full Spectrum LED Grow Light.

The light measures 12.2 inches long, 8.26 inches wide and 2.36 inches thick. The compact design has two base fans, power socket, daisy chain outlet, and the veg and bloom switches.

It is fitted with 60 pieces of 10 watts Epistar LEDs that deliver a full spectrum for vegetative growth and flowering. The full spectrum ranges from 430 to 730 nm.

King Plus offers your cannabis plants the best ratio of color. For example, you have two types of red spectrums, 620 to 630 nm and 655 to 660 nm.

During our tests, we realized that this is a model is more of a red spectrum light than blue. So, it may not be an effective choice for seedlings and veg, but a great choice for flowering.

The PAR output is very impressive. The effective PAR value at 24 inches is approximately 458 μmol/m2s. The core coverage is 3 by 3.4 feet.

Given the modest power output of this light, it does take a very small footprint. So, you can choose to daisy chain multiple units in your grow room to enhance illumination.

The built quality reflects its price as it is lacking a few heat sinks. However, the cooling system backed by two high-speed fans that improve heat dissipation.

Pros:

• 10W Epistar LEDs deliver an optimum full spectrum
• It offers the best ratio of color for your cannabis plants
• Delivers a high PAR to lumen output for optimal growth
• Daisy chain socket allows you to connect more units
• High-speed fans improve heat dissipation

Cons:

• Has a very small footprint
• Red LEDs are in excess

#7 HIGROW 1000W Full Spectrum LED Grow Light

View on Amazon

The HIGROW 1000W Full Spectrum LED Grow Light is a high-quality grow lamp for indoor cannabis growing. It is an ideal choice for beginner growers.

This is a fairly big light that measures 20.1 inches long, 11.2 inches wide and 2.6 inches thick. It is fitted with three base fans, an input socket, and bloom and veg switches.

It comes with 200 pieces of 5 watts Bridgelux LEDs with a ninety-degree lens that minimizes light loss by about 30%. This helps to maximize growth and yield.

The powerful LEDs deliver a 12-band full spectrum. The red (650-660 and 620-630 nm) and blue (460-470, 450-460 and 430-440 nm) spectrums offer your plants with the best ratio of color.

The veg and bloom channels can be operated independently to meet the individual requirements of different growth stages.

The light has superior efficiency. When both the veg and bloom switches are on, it only consumes 400 watts, reducing electricity costs.

The model has a remarkable PAR output. At 24 inches, the PAR at the core is around 765 μmol/m2s. But the effective coverage is about 4 by 3 feet.

With three high-speed cooling fans and upgraded heat sinks, the light never runs excessively hot.

Pros:

• 5W Bridgelux LEDs are brighter and energy saving
• 12-band full spectrum delivers optimum illumination
• Energy-efficient light draws an average of 400 watts
• Comes with a fairly long power cord
• High and effective PAR of 765 at 24 inches
• The best ratio of color, red (52.3%) and blue (38.1%)

Cons:

• Possible to receive a defective unit with one operational channel

#8 BESTVA DC Series 2000W Full Spectrum LED Grow Light

View on Amazon

If you are looking for the highest PAR/lumen output for the optimal growth of your indoor cannabis plants, the BESTVA DC Series 2000W is your best bet.

The light is strong enough that it is projected to last at least 100,000 hours. However, considering the quality of the unit you should expect constant performance for at least seven years.

This can be a very effective grow light if you are just a beginner for illuminating your indoor cannabis plants.

The light is made of only reliable and top-of-the-line materials. It weighs 10.36 pounds and measures 20.66 inches long, 8.46 inches wide and 2.36 inches thick.

The light comes equipped with 200 pieces of dual-chip Bridgelux LEDs that are rated at 10 watts. The dual chips are very bright and energy saving.

This model will provide your cannabis with a full spectrum that is very necessary for your plants to grow healthy. The spectrum guarantees higher yields.

The full spectrum is also incorporated with IR and UV wavelengths, which are both very essential for your indoor cannabis plants.

The spectrum composition of this light ranges from 380 to 730 nanometers, which is essentially consistent with natural visible light.

The PAR/lumen output of the BESTVA DC Series 2000W is very impressive. At 24 inches, the core PAR is 760 μmol/m2s.

Pros:

• Dual-chip 10-watt Bridgelux LEDs are brighter and more energy saving
• Optimum full spectrum replaces natural light
• Has selectable bloom and veg switches for the effective operation
• High PAR/lumen output with a wider effective coverage
• Full-spectrum includes UV and IR lights, which are beneficial to cannabis
• Highly durable can last up to 100,000 hours

Cons:

• Possible to lose a few LED chips
• Could be better with triple-chip LEDs

#9 Phlizon Cob 1000W Full Spectrum LED Grow Light

View on Amazon

If you are looking for a professional light for any growth stage, look no further than the Phlizon Cob 1000W Full Spectrum LED Grow Light.

The heavy-duty body is made from highly durable materials. According to the manufacturer, the unit is expected to last for at least 50,000 hours.

It features special Cree cob LEDs that are well-known for stability and high power. These LEDs guarantee a longer lifespan by reducing light attenuation and thermal resistance.

The light features an optimum full spectrum that provides your indoor marijuana plants with all the necessary light needed for optimal growth.

You get extremely high and effective PPFD. At 18 inches, the unit delivers an optimum PPFD of 941 μmol/m2s. This output boosts higher yields.

The light comes with two pieces of cob, forty pieces of 630 to 660 nm, six pieces of 470 nm, five pieces of 6500K, three pieces of 3000K, two pieces of UV and two pieces of IR.

The coverage is also very impressive. At 24 inches, the maximum coverage is 3.5 by 3.5 feet and the core coverage is 3.3 by 3.3 feet.

Pros:

• Cree cob LEDs are less affected by attenuation and thermal resistance
• Delivers superior PPFD for fast growth and higher yields
• A very energy-efficient design that consumes only 245 watts
• Selectable veg/bloom and stronger switches
• The full-spectrum design provides your cannabis plants with everything
• The superior cooling system maintains optimum temperatures

Cons:

• Some LEDs may burn out

#10 Mars Hydro Reflector Series 720W Full Spectrum LED Grow Light

View on Amazon

The Mars Hydro Reflector-Series 720W is a highly recommended full spectrum LED grow light. It comes with a versatile design that gives you lots of options for placement.

This model measures 28 inches long, 10 inches wide and 2 inches thick. It is one of the heaviest models in the reflector series, weighing in at 14.77 pounds.

The longer bar-style design has two push-button dimmers and the reflective chrome base. All the parts are made from durable materials.

The LED light exposure design has a strict spectral ratio as well as two selectable switches for growth and bloom. Independent operations are energy saving.

The light exposure design ensures there is no light loss during the irradiation process. The individual LEDs are fitted with a reflector for uniform light irradiation.

Effective light irradiation ensures your cannabis plants have a comprehensive growing environment for both vegetative and flowering stages.

Upgraded heat sinks and high-speed cooling fans largely dissipate excess heat for optimal operation. The noise from the fans is minimal.

Daisy chain function allows cascading of several units to improve coverage. Also, the daisy chain outlet is universal with the power cord.

Pros:

• The versatile bar-style design offers many placement options
• The reflective design ensures your cannabis plants receive all the light
• LED light exposure design largely prevents light loss
• Two selectable switches for easy operation
• Daisy chain function for connecting additional units
• Perfect cooling and noise reduction system

Cons:

• Some diodes may burn out

#11 Roleadro Galaxyhydro Series 300W

View on Amazon

GalaxyHydro is a reputed brand, known for it’s cheap inexpensive solutions to your growing needs. Roleadro is the new brand behind GalaxyHydro and together they have developed some amazing grow solutions with updated designs and incorporating the latest changes in LED grow light technologies that you would like to own with pride.

The Roleadro GalaxyHydro is a full spectrum LED grow light that can easily replace a 250W HPS system and has a coverage area of 3’x3’ i.e it is best suited for a 3’x3’ tent size. This 300W LED system has an actual power consumption of 132W +/- 5%, measures 12.1”x8.2”x2.4” and weighs around 6lbs. It has a sturdy aluminum shell built.

The main illuminating part of the device is equipped with durable and well-tested Epileds 45 mil LED chips. These LEDs can deliver significantly larger amounts of light and provide more nutrients to your plants. The 3W LEDs are fixed on a circuit board with an aluminum substrate which adds protection to the LED.

Also, there is an acrylic cover that keeps away harmful elements like dust, rust, and microparticles from the LED panel. A Zener protector is connected to each LED, so that each LED works individually and even if one fails that will not affect the rest of the LEDs and they will continue to emit light the same way.

Zener’s exit function keeps the circuit in working condition and enhances the durability of the product.

The unit has a well balanced full spectrum illumination. There are 86 Red LEDs, 10 Blue LEDs, 2 White LEDs and 2 in the UV and IR range. The Red and Blue lights and their ratio plays an important part in photosynthesis.

The Red and Blue spectrum is well balanced and is in the most recommended ratio of 9:1. As mentioned it has its share of UV and IR LEDs and provides the necessary amount of UV and IR rays necessary for the plants.

The UV rays help in germination and prevent the growth of harmful bacteria as well, while the IR rays play an important role in photosynthesis and aids in leaf building. The IR rays are more useful in the budding stage while the UV rays facilitate growth in the vegetative state. This Optimal light balance is sure to increase your yield by 30-50%.

Roleadro Galaxy Hydro LED grow lights have a higher PAR value compared to the LED grow lights available in the market in the same price range. Their value varies with the height but for this 300W model the PAR value from a height of 18” is around 453umol.

The strategically placed LEDs at an angle of 120 degrees emulate sunlight and are also responsible for the high PAR value.

The GalaxyHydro Grow lights have 20% higher heat dissipation than the standard ones available in the market. This is due to two UL certified cooling fans that have high speed and are efficient enough to dissipate or throw away the heat. Additionally, the aluminum heat sink also aids in heat dissipation and successfully keeps the temperature inside the tent cool.

Lastly, this model is inexpensive and also saves a lot of money in the long run. It consumes less energy in terms of electricity and is known to reduce your electricity consumption by 50% as compared to old LED grow lights.

The Roleadro GalaxyHydro LED lights are backed by a 2-year manufacturer warranty and a 30 days money back policy in case you are not satisfied with its performance and want to return it. The Roleadro GalaxyHydro LED grow light is also available in a 600W option.

Pros:

• Full Light spectrum with best RED: Blue ratio and UV, IR rays
• High PAR value
• Low consumption of electricity
• Sturdily built, and lightweight
• Zener protection
• Great heat dissipation

Cons:

• Not Dimmable
• No auto timer
• Not Waterproof
• Cannot manually control the spectrum
• Daisy chain not possible in the 300W model

#12 MAXSISUN Dimmable 300W LED Grow Light

View on Amazon

Developed from years of research and rigorous toil, the Maxisun Dimmable 300W or MDR300 has been most popular among the best growers in the world. Though we would be discussing the model with 300W, the Maxsisun Dimmable Grow Lights are also available in 450W,600W, and 1000W models.

It is a highly affordable 12 band full spectrum, programmable grow light and is also available in an optional timer control variant. The MDR300 can easily replace a 250W HPS while consuming only 142W of power.

The timer control variant consumes even less @126W. This LED unit is capable of covering an area of 40”x40” during the vegetative state and an area of 30”x30” during the blooming state.

The MDR300 consists of 60 Epiled/Bridgelux LEDs of 5W each summing up to a maximum of 300W. These LEDs are said to be the best in business and provide you a higher PAR value compared to the regular ones.

The LED design layout along with the presence of reflectors and secondary reflectors boost plant growth and magnify the PAR output, thereby increasing the light penetration by almost 150%.The full Spectrum along with the right IR balance aids in a perfect PAR output and is specifically designed to optimize the metabolic processes.

The two operating knobs let you program the light intensity and you can be in full control of your plants whether they are in the vegetative state or the budding state. The controls allow you to adjust the lights, their spectrum and intensity for different grow stages from germination to harvest.

The LED unit has two in-built cooling fans that take care of the heat and there hasn’t been any complaint as such from any consumer regarding the heat dissipation of this unit through the company itself doesn’t provide any clear information regarding heat sinks.

This best led grow light is backed by a 6-year warranty and has a lifespan of 1,00,000 hours which will generally exceed the warranty period. It also comes with a 60day money back policy.

Pros:

• Affordable with Epiled/Bridgelux LEDs
• Full Light spectrum with IR rays
• High PAR value with reflectors and excellent canopy penetration
• Low consumption of electricity
• 2year warranty period with 1,00,000 hours lifespan
• Two cooling fans

Cons:

• No timer control in this unit
• No information regarding heat sinks

#13 VIPARSPECTRA Reflector-Series 450W LED Grow Light

View on Amazon

Viparspectra is one of the most trusted brands if not the most in the LED grow light business. It has a wide range of LED grow lights available in different categories of power, intensity, and features and you will come across one that will suit your need or requirement.

For the sake of the article, we will discuss the 450W reflector series and the 1200W variant much later in the list. To start with let’s see what’s in store for us in the 450W model, the V450.

The most stunning fact about this company is that the Viparspectra has been developed, researched and manufactured by indoor growers and hence they have been designed keeping in mind the optimal conditions for the best yields.

The Reflector series is scientifically engineered to strike a balance between the PAR/Lumen output and the coverage area. The unit measures 15.8”x8.4”x2.4” and weighs 6lbs.

The V450 has a strong sturdy and durable built. It features 90 pcs of high-intensity 5W Epiled/Bridgelux LEDs producing the same yield compared to a 400W HID light while consuming around 200W power.

The V450 covers a full spectrum band of light with a well-balanced mixture of red blue and white lights. It is perfect for a 2.5’x2.5’ area when hung from a height of 24” during the vegetative state while from 18” the coverage area comes to 2’x2’ during the flowering state.

The V450 boasts of a 70% more heat dissipation compared to its competitors in the industry. This is facilitated by advanced high-speed fans and premium aluminum heat sinks. The high-speed fans are less noisy and provide a quieter environment.

Two switches allow you to shift from the vegetative stage to the bloom stage. This highly affordable yet effective LED unit is backed by a three-year warranty and a 30-day money-back policy.

Pros:

• Inexpensive lightweight and durable
• Optimal balance between PAR/Lumen value and coverage area
• 70% more heat dissipation
• 90pcs of Bridgelux/Epiled LEDs
• Vegetative and Bloom Switch
• High-speed quiet fans
• 3-year warranty and 30-day money-back policy

Cons:

• More blue light than red
• Not suitable for big gardens
• Not dimmable
• No timer control

#14 MEIZHI Reflector-Series R450 450W LED Grow Light

View on Amazon

The R450 has been designed to replace or as an alternative to 600W HID lights. The Meizhi Reflector-Series R450 is an affordable full spectrum compact LED grow light with low electrical consumption of 195W. The unit measures 15.8” x 8.3” x 2.8” and weighs around 6lbs. It can successfully cover an area of 2’x3.5’ to give optimum yields.

The R450 is equipped with 90 high-intensity 5W Epistar LEDs which includes the right balance of blue, red and white lights along with 3 infrared lights to improve yields. The Epistar LEDs are intense and will give you the full value for your money. Thus it provides you with a full optimal range that would favor growth from germination to harvest.

The LED has an ETL certification of 50,000 to 1,00,000 hours which will give you a certification of the durability of the product. The 120-degree reflectors that surround each LED enhance the light penetration by directing the entire light downward and thereby cutting off the loss.

The dual switches aid in optimizing the intensity of the vegetative and the bloom stage. The PAR value of the unit is 779umols which exceeds the standard PAR value of 600umols by a considerable margin and is impressive considering the price that you shell out for this model.

The R450 has high-quality aluminum heat sinks and cooling fans so that the unit never gets heated up. The heat generated is successfully dissipated and the durability of the LEDs enhanced.

The model is suitable for daisy chain arrangement and is backed by a 1-year warranty wherein the repair fee is not charged. It also has a 3 months warranty which includes free components, repair fees, and service and a 30-day money-back policy.

Pros:

• Affordable lightweight and durable
• Epistar LEDs
• Good balance of blue red white and IR light
• Dual switches for veg and bloom stage
• High PAR value of 779umols
• 120degree reflector ensures greater penetration
• Daisy chain functionality

Cons:

• 1-year warranty only and that too on repair fee
• All components are chargeable after three months
• Comparatively new brand

#15 BESTVA Reflector-Series 600W LED Grow Light

View on Amazon

Established in 2011 by the Shenzhen King Lighting co. Ltd which is based in Guandong China, Bestva has already gained immense popularity with its series of high quality LED grow lights. It has been successful in establishing its identity and brand value with distinct and different fixtures in its Double Chip, Elite and Smart Series grow lights.

The Bestva reflector full spectrum LED grow light is a member of the Elite Grow light series. The Elite 600W boasts of a yield similar to a 400W HID light while consuming only 132W of power. This highly effective and low energy consuming LED unit is perfect for an area of 2’x2.2’ when hung at a height of 24”. The Unit measures 11.5”x7.9”x2.8” and weighs approximately 5.7lbs.

The Elite 600W is equipped with 60 double chip Bridgelux LEDs of 10W each. The LEDs are placed at an angle of 90 degrees and have a frequency of 50-60HZ along with a life span of 1,00,000 hours. The ELite 600W is upgraded from the generic spectrum of their DC series and the latest model uses 10 different wavelength LEDs to cover the full spectrum.

The ratio of the Red to Blue LEDs has also been modified from 8:3 to 1:1 wherein the equal number of blue and red LEDs are scattered in the panel along with IR LEDs. This LED unit is more suited for the growth of medicinal plants. The VEG and BLOOM modes support the growing stage and germination or seeding stage respectively.

15-18 hours of lighting regularly is recommended in these cases for optimal yield while the Full Spectrum mode aids in flowering or fruiting and a 12-14 hour of lighting is recommended in this case.

The Bestva Elite 600W has an upgraded cooling system that does not use any fans but a 5mm thick integral aluminum structure radiator which is better and more effective than multiple dispersed radiators and cooling fans.

The Bestva Elite 600W is made of high-temperature-resistant materials and is backed by a 3-year warranty with round the clock service along with a 30-day money-back guarantee.

Pros:

• Low energy consumption of 132W
• Double chip Bridgelux LEDs
• Red to blue ratio 1:1
• VEG BLOOM and FULL SPECTRUM modes
• Upgraded cooling system
• 3-year warranty and a 30-day money-back guarantee

Cons:

• Not waterproof
• No timer
• More suited for medicinal plants
• Not dimmable

#16 MarsHydro Mars 600W Led Grow Light

View on Amazon

Another full spectrum grows light that will perfectly fit in even a small budget is the MarsHydro Mars600. This unit is backed by 8 years of rigorous and intense research and innovation.

The Mars600 uses a LED technology that is low on power consumption and heat generation, thereby keeping the running costs to a bare minimum. This highly cost-effective and efficient LED grow light measures 17”x11”x3” and weighs around 9.8lbs. The LED unit can cover an area of 2’x3.5’ in the vegetative stage and 2.5’x2’ in the flowering stage.

The Mars600 is equipped with 120 pcs of 5W Epistar LEDs that emit a decent full spectrum required for optimal growth in any growing stage. Epistar LEDs are well known for their performance and durability and do not fail to impress us here too.

The Mars 600 has a chip density of 1.53 but lacks the inclusion of UV or IR rays in the spectrum. The Mars 600 can easily replace a 300W HPS light while consuming only 132W of electricity.

It has a PAR value of 980umols from a height of 18” which is pretty high considering the other LED units in this price range and hence can boast off higher penetration an, in turn, better yields.

The LEDs are placed at an angle of 90 degrees and 120 degrees across four wavelength bands and provide you optimal conditions throughout the bloom cycle. You need to just vary the time of operation reducing it from 18-20 hours in the germination stage to 14-18hours in the vegetative stage and finally up to 12 hours in the flowering stage.

The heat generated is successfully dissipated by two high-speed cooling fans that make a maximum noise of 56dB which is on the lower side and massive pin-cushion heat sinks.

The failsafe diode design of the unit adds to its life. The Zener protector attached to each LED ensures that if one chip fails the rest of them still work and you have an overall active LED grow light unit.

The unit comes with a three-year effective warranty and a 30-day money-back policy

Pros:

• Covers an area of 2’x3.5’
• Epistar LEDs used
• Energy consumption is just 132W
• High PAR value
• Two low noise cooling fans and massive pin-cushion heat sinks
• 3year warranty and 30-day money-back policy

Cons:

• No UV and IR rays
• Not waterproof
• Not dimmable
• No timer

#17 Advanced Platinum Series P900 900w 12-band LED Grow Light

View on Amazon

The P900 is a part of the new generation of Platinum LED lights that have surpassed every other LED unit in terms of performance and durability. Designed by the US-based company Platinum LED Lights, LLC.

They feature the highest PAR per watt value along with the most effective advanced 12 band spectrum that produces the maximum yields while consuming less power and generating less heat. The P900 is capable of replacing a 1000W HID light easily and consumes only 512W of electricity. The light is 100% usable and is perfectly balanced to optimize the photosynthetic processes.

The P900 is suited for massive applications and can cover an area of 6’x4.5’ at 18” height. The P900 panel measures 36”x12”x3” and weighs approximately 35lbs.

The P900 was designed to replace the 1000W HID lights and features 300 pcs of high-performance 3W Bridgelux LEDs. The 90-degree secondary focusing lenses ensure that light reaches every single corner and no plant is neglected. Above all the Zener protectors attached to each LED is responsible for uninterrupted usage even when one LED is not working.

The actual power consumed by this unit is much less and ranges between 279W for the VEG switch and 515W for the BLOOM switch. You can switch the light intensity and spectrum by the stage your plants are in.

With an advanced 12 band spectrum it emits light from the UV to the IR range along 12 different bands to ensure optimal plant growth and development. The light spectrum supports photosynthesis as well as photomorphogenesis thus enabling not only full plant development but also enhancing the range of biochemical diversity within the plants and improving their biomass.

This all is achieved while consuming less power and hence the heat generated is also minimized. Furthermore, to dissipate the heat there are four high-speed fans with very low noise levels and a highly effective high-grade aluminum heat sink that does not let the heat affect the internal circuit and maintains a cool environment in the vicinity as well.

The P900 is commonly used by people in horticulture, hydroponics, indoor gardening and aquaculture and can be arranged in rows to facilitate large scale indoor horticulture and aero-farms. It is estimated to have a life span of 50,000-1,00,000 hours and is backed by a five-year warranty and a 90-day money-back guarantee which is quite high compared to the industry standards.

Pros:

• High coverage area with great penetration
• Bridgelux LEDs with Zener protectors
• Energy consumption is as low as 515W
• Highest PAR/ Watt value LED
• Four whisper-quiet cooling fans and high-grade aluminum heat sink
• 12 band spectrum includes UV and IR

Cons:

• Can be fitted on powerful beams or roofs only
• Can’t be fitted at a height lower than 12”
• Not dimmable

#18 King plus 1000w led grow light

View on Amazon

The KING PLUS 1000 is a new and yet a very powerful product. The unit is equivalent to an HID light of 400W and the first thing that will attract you about this unit is the extremely low power consumption to the yield that this unit will earn for you. The power consumption of the unit is 210W and the unit has a coverage area of 3.4’x3.8’.

The unit measures 12.2 x 8.26x 2.36” and weighs 6.4lbs. Many consumers feel that the name KING PLUS 1000W refers to the power equivalence as compared to HID lights and may feel cheated when they find out that it’s not the case.

You have to understand as with all LED units this numerical value refers to the total wattage of the LEDs i.e the wattage of each LED multiplied by the number of LEDs in use.

The LED circuit board in this unit is a little different from the standard models that we have listed so far. Each Epistar LED unit consists of not a single diode but two 5W diodes or a double chip technology that enhances the brightness or the luminosity by almost two folds.

This technology also aids in maintaining the uniformity in light distribution. Further, more Zener protectors are added to enhance the durability of the product. By now you must have known that Zener protectors enable the working of the remaining diodes even if one has gone for a toss or has stopped working.

There are a total of 100 such small units that together bring about a full band spectrum with a properly balanced ratio of red, blue, yellow and white lights along with UV and IR rays. The KING PLUS 1000W has 71 units in red, 14 in blue, 8 in yellow, 5 in white and 1 each in the UV and IR zone. The full spectrum enables plant growth through the full circle from germination to flowering. The unit has a high PAR value of 958umols at a height of 12”.

Cooling of such a unit is an extremely important task and will not only eliminate the risk of the circuit burning but will also prevent the burning of plants in the near vicinity or heating up of the environment in the grow tent or area.

This is brought about by multiple heat sinks with ball bearing fans that constantly aid in maintaining the running temperature of the unit.
The unit has a lifespan of 50000 working hours and is backed by a 3-year warranty

Pros:

• Double Chip Epistar LEDs with Zener protectors
• 50% consumption of electricity
• Balanced full band spectrum with UV and IR rays
• A unique efficient cooling system
• Small unit, lightweight and affordable
• 3-year warranty

Cons:

• Not waterproof
• Not dimmable
• No VEG or Bloom switch
• Not the most long-lasting option available

#19 VIPARSPECTRA V1200 1200W LED Grow Light

View on Amazon

We have already mentioned that Viparspectra excels in LED grow lights and the V1200 is no exception to this rule. It may not be the cheapest option available in the market but one of the most effective ones and the perfect value for your money.

Designed by growers it is scientifically designed to get the best possible ratio of PAR/Lumen output to the coverage area. It provides a yield equivalent to a 1000W HID system and consumes only 524W which is extremely low compared to the other grow lights that yield similar values.

The unit has a coverage of 4.5”x4.5” at 32” for the vegetative state and coverage of 3.5’x3.5’ at 24” for the flowering stage. The unit measures 19.4”x19.4”x3” and weighs 20lbs which is also low if you consider the output of this unit.

The V1200 is powered by 240pcs of 5W Bridgelux/Epiled LED units. These LEDs are well balanced and will give you a full spectrum along with IR rays to facilitate growth and development through all the growing stages.

The VEG and Bloom Switches allow you to effectively control the spectrum during different growing stages. It’s predetermined and you do not have to know the same to manipulate it.

With this power being belted out the unit must be in the need for efficient cooling. To bring about effective cooling the unit is equipped with 6 separate cooling fans and aluminum heat sinks. They reduce the heat generated by a whopping 70% when compared to similar HID units.

The unit is backed by a three-year warranty and has a lifespan of 1,00,000 hours and has a 30-day return policy if you are still in doubt

Pros:

• 5W Bridgelux/Epiled LEDs
• Equivalent to 1000W HPS
• Low electrical consumption of 524W
• High coverage area
• Balanced Full spectrum
• Advanced cooling system

Cons:

• Indoor use only
• Not dimmable
• Not waterproof

#20 BESTVA DC Series 2000W LED Grow Light

Here is the last entry to our list and many have reviewed it to be the best in business. With its cutting edge technology that enables greater penetration and a higher coverage area while you are not shelling out a lot from your pocket for such a product makes it worth having a glance.

The BESTVA LED 2000W uses a dual-chip LED technology with an efficient full spectrum luminance to enable greater yields in all phases of growth. The unit compares to a 1400W HPS system and consumes only 390W which is very low when compared to other LED units. It has twice the effective coverage area of the reflector series and is perfect for a growing area of 7.8’x7.5’ at 24” height.

The unit consists of 200 pcs of double chip 10W Bridgelux/Epileds LEDs that provide 50% more brightness than single-chip ones. They have the highest PAR/Lumen output per LED. The LEDs are placed at an angle of 120 degrees so that there are maximum coverage and equal distribution of light.

The efficient full spectrum that ranges between 380-780nm is best suited for indoor plants at all the growth stages. It has a balance of UV and IR rays in the spectra. The full band spectrum is well balanced to optimize plant growth.

Though the unit already boasts of a cooler environment, the holes on the aluminum panel and the glass make heat convection system adds to the cooling effect. The unit is backed by a three-year warranty and a 30-day money-back policy.

Pros:

• Double chip 10W Bridgelux/Epileds LEDs
• Low electrical consumption of 390W
• Extremely High coverage area
• Balanced Full Spectrum with UV and IR rays
• 120 degrees angle
• Advanced cooling system

Cons:

• Indoor use only
• Not dimmable
• Not waterproof
• No VEG/Bloom switch

Led Grow Lights: Buying Guide

LED lighting is the latest technology among indoor marijuana growers. This technology has proven to be very effective as far as growth and yield are concerned.

A light source that has a full spectrum of the Sun in it, but also has higher nanometer ranges of colors for both veg and bloom stages.

Full-spectrum LED grow lamps can enhance photosynthetic properties greater than any traditional grow light.

You can embrace this technology today by choosing a model that works for you. Here are important factors to consider.

Wavelengths

Cannabis plants use more blue and red wavelengths for photosynthesis than any other wavelength.

Top-of-the-line full spectrum LED grow lights allow you to pick the ideal wavelengths in the full spectrum instead of a specific wavelength.

Some of the wavelengths that are crucial for indoor cannabis growing within the 400 to 740 nanometers range are:

• Red – 620 to 630 nm, 655 to 660 nm
• Blue – 440 to 450 nm, 450 to 460 nm
• Orange – 605 to 610 nm
• UV – 380 to 410 nm
• Far Red – 730 nm

Light Quality

You may have a full spectrum LED grow light that gives your plants all the necessary wavelengths. Are your cannabis plants receiving all the wavelengths?

Marijuana plants are capable of sensing UV to infrared wavelengths. This refers to the photo-biologically active radiation (PBAR, which ranges from 280 to 800 nm).

The visible spectrums (400 to 700 nm) also referred to as photosynthetically active radiation (PAR) is useful for photosynthesis.

The blue light spectrum ranges from 400 to 460 nm. The blue spectrum has fairly high energy. The wavelengths in this spectrum have pronounced effects on cannabis plants.

The blue spectrum normally promotes germination.

The red spectrum is resourceful at regulating growth as well as the development of your indoor marijuana plants.

The red light promotes cannabis flowering as well as fruiting. Far-red is essential for phytochrome recycling.

Light Intensity and PPFD

• Intensity

Light intensity influences the way your cannabis plants grow. If you grow your marijuana in low light intensity, they will tend to be spindly.

However, cannabis plants grown in a bright light would tend to be healthier. They would be shorter, thicker and with dark green leaves.

According to our evaluations, the light intensity your plants get depends on the nearness of the LED grow light to the plants.

Light intensity usually decreases rapidly as you increase the height of the lamp.

• PPFD / PAR

The PPFD is the number of photons in the PAR waveband that are incident on your cannabis plants. The PPFD is extremely important for indoor marijuana growing.

PPFD vary for the height of the lamp. For example, a given LED grow light may have a value of 594 μmol/m2s at 24 inches and 2172 μmol/m2s at 6 inches.

Wattage

Wattage has been used by indoor growers to establish the power of an LED grow light. Wattage is directly related to the coverage area.

For example, a 400W unit will flower a roughly 2 by 2, a 600W will flower a roughly 3 by 3 and a 1000W will flower a roughly 4 by 4 grow space.

However, the wattage draw is not the same as light intensity. A fixture will emit more light, depending on how efficient it.

You may find a 1000W full spectrum LED grow light that emits more useful light than a 1500W fixture at a height of 24 inches.

According to our inferences, wattage draw only gives you a general idea of how powerful a given full-spectrum LED light is.

Coverage Area

You can only be able to choose a quality to grow lamp if you know the dimensions of your grow space. You don’t want to invest in the wrong product.

Common size grows spaces for indoor marijuana growing include a 3 by 3, 4 by 4, and 5 by 5 feet growing area.

Large Full spectrum LED grow lamps may only cover a 4 by 4 to a 5 by 5 grow area. The only handful of models you will come across can cover more than a 5 by 5.

This is so since it is nearly impossible for an LED to grow lamp to fully cover the corners and edges at a good light intensity.

In most cases, we recommend that you buy units with daisy chain function. This would allow you to add more fixtures of similar ratings to increase coverage.

Most manufacturers will have recommendations for maximum and core coverage. In this case, core coverage refers to the area that receives optimum illumination.

Phase of plant growth and Spectrum

The phase of plant growth is very important when choosing the LED to grow lights. If you are not looking for a specific phase and want a light to suffice through all the growing stages then you need to choose a full spectrum LED grow light.

Now full spectrum grow lights are available in a wide range of band options. The best ones or the ones that will promote development and growth from germination to flowering are the ones that have a balanced ratio of red, blue and white lights along with a share of UV and IR rays.

The best ratio of red to blue is 9:1. Some LED units have dimmable knobs to control the intensity of the lights while others are equipped with switches to alternate from VEG and Bloom stages.

Switching both of them together will give a full spectrum light. The PAR/Lumen value is also essential in determining the penetration value of the light. The PAR value is determined by the height. The higher the PAR value the better it is.

HID equivalence

The power of the HID light which can be replaced by the LED unit is extremely important. This helps you choose as to what strength of LED you need to buy.

The numerical value expressed at the end of an LED model is not the HID equivalence and consumers are often mistaken by it. For eg. V1200 refers to the total LED wattage or the wattage of an individual LED multiplied by the number of LEDs through the HID equivalence of V1200 is 1000W.

LED

The quality and the make of the LED chip along with the individual power and the technology make an important mark in the LED grow light unit. Most high ends LED grow lights use Bidgelux/Epileds LEDs or Epistar LEDs.

Some LED grow lights use a double or dual-chip technology wherein a single diode is replaced by two diodes together. They are almost twice as brighter and better. Some LED chips have a Zener protector attached to them to enhance the durability of the product.

The protector eliminates the risk of breaking the circuit when a single LED is not working and hence the remaining unit still runs when attached to one.

Electrical consumption

The electrical consumption of the LED grow lights are generally much lower than any HID unit, but you get LED units which have the same power and give the same yield but consume much less electricity. Going for such a model will help in lowering the running cost.

Heat Dissipation

Though the heat generated by LEDs is much less compared to any other kind of grow lights, even then the heat generated has to be successfully dissipated or else it may burn and disrupt the LED circuit and also increase the temperature of the growing environment and affect plant growth. Too much heat can even burn the plants. Most LED grow units have high-grade aluminum heat sinks and cooling fans to take care of this factor.

Price

The cost of high-quality full-spectrum LED grow light is also an important consideration for indoor cannabis growers.

This is so since these fixtures can be quite expensive. But, the cost of these fixtures is going down, while performance and efficiency are going up.

Good quality light can cost less than $100 to more than $2,000. The size, light output, and quality of parts determine the price of a fixture.

Frequently Asked Questions – FAQs

What is A Full Spectrum?

Full-spectrum refers to light that contains all the colors of the rainbow. Usually, a full spectrum simulates natural sunlight.

What Color Light is Suitable for Seedling Germination?

The effect of the blue spectrum on plants is regulating growth. Therefore, this makes the blue light suitable for seedlings.

Why is PAR Important for Cannabis Growth?

Cannabis thrives in shorter wavelengths because they tend to deliver more energy. PAR outputs represent these shorter wavelengths.

Too high or too low PAR values may be damaging to your plants. Therefore, you need to maintain optimum levels that your marijuana plants need for photosynthesis.

What is the Ideal Height for Setting up an LED Grow Light?

Placement options differ from one brand to another. The recommended height for the veg is 20 to 26 inches, for the bloom is 26 to 30 inches, and the veg plus bloom is 18 to 24 inches.

What Size LED Grow Light Should I Buy?

The size may differ from your grow area. For example, a 400W would be ideal for a 2 by 2 feet room, while a 1000W would be suitable for a 4 by 4 feet area.

However, the size/wattage draw does not determine the efficiency of the light. A 600W could deliver more light than a 1000W.

Sometimes it is even better to buy several small units and connect them using daisy chain function to achieve your desired coverage.

Are White LED Lights Full Spectrum?

White light can be generated by combining LEDs with different wavelengths, such as red, green and blue or yellow and blue.

Alternatively, white light can be created by coating blue LEDs with a phosphor.

In this case, the phosphor will absorb some fraction of the photons emitted by the blue LEDs and re-emit light with longer wavelengths through luminescence, creating white light.

The emitted spectrum can be adjusted based on the type as well as the amount of phosphor coating. Therefore, this is not a true white spectrum and not a full spectrum.

Are Full Spectrum LED Grow Lights Safe To Use?

You must consider several factors when talking about safety, including wavelength, intensity, and duration of exposure.

Intense light from very powerful fixtures will most certainly damage your vision. This is regardless of the wavelength the fixtures give.

The high light intensity can cause sunburns on your retinas and burns on your skin.

Most wavelengths within the visible spectrum are usually not harmful. But full spectrums that extend beyond visible light to include UV and far red are harmful.

Should I Be Worried About Hazardous Materials in LED Grow Lights?

Originally, LED fixtures were said to contain hazardous materials, such as mercury. But that is a myth nowadays.

According to research, LED lights are said not to be hazardous with an exception of low-intensity red LEDs that release a miniature amount of lead.

Conclusion

There is no better way of boosting your indoor cannabis growing than using a good quality full spectrum LED grow light.

Unlike traditional fixtures, full-spectrum lights ensure your plants receive all the useful wavelengths from UV to far-red.

Modern designs come with two modes of operation: vegetative and bloom. A true innovation in indoor lighting for optimum growth and higher yields.

The best of these lights have both the full spectrum and higher nanometer ranges of color for all growth stages.

The result is a light source that can enhance the photosynthetic properties of chlorophyll greater than even natural light.

If you are growing cannabis for the first time, full spectrum fixtures are what your cannabis plants need!