Top Of Best 300 Watt Led Grow Light 2018 (Buyer’s Guide)

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Best 300 Watt Led Grow Light
We made this review research for those who want to find the best 300 watt led grow light on the market. Use our top list of the best 300 watt led grow light to quickly find a reliable option in a suitable price range.

We have been working for many hours to make this buying guide. Our team thoroughly compared many 300 watt led grow light from the marketplace to find the best products. Review score, material, brand, weight, and many other specifications were taken into consideration. However, if you still think that there is a way to make our guide better — contact us and share your ideas.

Top of 300 Watt Led Grow Light of 2018

Rating Image Name and Features Details
Ease of use 4/5
Size 5/5
Durability 5/5
Quality 5/5
Lightimetunnel Plant Led Grow Light 1. Lightimetunnel Plant Led Grow Light
High light efficiency.
Read reviews
Ease of use 4/5
Size 5/5
Durability 4/5
Quality 5/5
Led Grow Light 2. Led Grow Light
Professional 12-band full spectrum, we are the first company who researched and designed the 12-band led spectrum led grow light for veg & bloom with uv&ir.
Read reviews
Ease of use 5/5
Size 2/5
Durability 5/5
Quality 5/5
Phlizon Newest 600w Led Plant Grow Light 3. Phlizon Newest 600w Led Plant Grow Light
Full spectrum- we did lots of experimentation to ensure that this full spectrum design promotes plant growth.
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Ease of use 3/5
Size 3/5
Durability 5/5
Quality 5/5
Viparspectra Dimmable Reflector Series Ds300 300w Led Grow Light 4. Viparspectra Dimmable Reflector Series Ds300 300w Led Grow Light
The secret to the viparspectra led success is the optimal full spectrum which provides plants veg and flower all stages with everything they desire in the natural sunlight.
Read reviews
Ease of use 2/5
Size 5/5
Durability 3/5
Quality 5/5
Led Grow Light 5. Led Grow Light
Adopted epileds 45mil double led chips 5w and equipped with 90 degree secondary optical lens, provided the highest par and spectral output per watt, the complete and ultra-efficient spectral output provides indoor plants at all growth stages with everything they desire in the natural sunlight.
Read reviews
Ease of use 5/5
Size 2/5
Durability 3/5
Quality 4/5
Led Grow Light 6. Led Grow Light
Comparing with other led grow light, jhotec grow light is designed with two on/off switches for growth and bloom separately.
Read reviews
Ease of use 4/5
Size 3/5
Durability 5/5
Quality 2/5
Advanced Platinum Series P300 300w 12-band Led Grow Light 7. Advanced Platinum Series P300 300w 12-band Led Grow Light
The most complete and efficient spectral output available.
Read reviews
Ease of use 4/5
Size 2/5
Durability 5/5
Quality 3/5
Kingbo 300w Led Grow Light 8. Kingbo 300w Led Grow Light
Full spectrum 12-band 380-740nm with the key spectrum uv and ir, provide plants veg and flower all stages with everything they desire in the natural sunlight.
Read reviews
Ease of use 2/5
Size 4/5
Durability 3/5
Quality 5/5
Wattshine 300w LED Hydroponics Growing System 9. Wattshine 300w LED Hydroponics Growing System
This indoor grow light is designed with super bright double chips to produce much higher lux and lumen output than traditional 250w hps/mh light.
Read reviews
Ease of use 3/5
Size 2/5
Durability 4/5
Quality 3/5
Roleadro Upgrade 10. Roleadro Upgrade (Best Lightweight)
The leds emit the most vital light spectrum in one, it’s closer to natural sunlight with 3000k color temperature, and mixed majority of blue light ratio inside, which brings more leaves for photosynthesis.
Read reviews

 

 

 
№ 1. Lightimetunnel Plant Led Grow Light Full Spectrum 300w, Reflector LED Grow Lamp with Heatproof Casing, for Greenhouse Hydroponic Indoor Plant Growth By
 

Ease of use
4/5
 

Size
5/5
 

Durability
5/5
 

Quality
5/5
 
Overall Brand Model Dimensions Weight Details
4.8
Lightimetunnel 60101163 8.5 x 12.2 x 2.5 inches 3.53 pounds
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High-efficient heat-conducting material and exquisite cloud pattern vents disperse heat strongly. The light won t trap any heat in the light, runs much cooler than hps/mh light, protect the plants from burning and extend its lifespan. Designed with 168 pcs full spectrum leds (400-780nm) while added 24 pcs blue light leds, full spectrum provides all wavelength plants needed from natural sunlight, blue light enhance plants photosynthesis, promoting plants to achieve their best growth, bring more healthy and prolific plants. This growing lamp efficiently shorten the growth cycle, provide anti-season plants, veg and flowers, also increase the yield to a great degree, bring more commercial benefit, suitable for both home and commercial planting. Solid construction, slim design. New technology simplify the internal structure while not lessen the effect. High quality casing make it more slighter than other lights, easy to install. Excellent quality with great price.1 year warranty and easy after-sale maintenance, best choice for your indoor garden plant growth.

Unique 60 degree reflector cup and double chips design, bring higher par value and lumen output than normal led grow light, reducing light loss, the utilization of light up to 95%, promote plants fast growth and improve the output.

 

 
The good
Solid construction
Wide application
High light efficiency
Best heat-dissipation
We may not be
The bad
I have been using it for months and did not experience any troubles yet.
 

How to get a refund for a 300 watt led grow light?

Shop has a customer-friendly return policy, which means that you will not have any difficulties returning your money. If there is something wrong with your 300 watt led grow light, you only need to contact the customer support and ask for a refund. However, you should carefully read the item’s description before buying a 300 watt led grow light.

 

 
№ 2. Led Grow Light 300w Dimmable 12 Bands Grow Lamp Full Spectrum for Indoor Plants Veg and Bloom Flower Dimmers Uv and Ir Growmol Gm300 High Yield for Marijuana Cannabis Tomato Greenhouse (300w)
 

Ease of use
4/5
 

Size
5/5
 

Durability
4/5
 

Quality
5/5
 
Overall Brand Model Dimensions Weight Details
4.5
GrowMol 11.8 x 7.5 x 1.9 inches 6.07 pounds
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High yield flowering led grow light, chinese professional manufacturer of 10 years experience on led grow lights. High quality & lifetime warranty, all of led grow lights are using bridgelux & epistar high quality leds, super bright chips, long lifespan and pure spectrum. Veg&bloom dimmers, spectrum for veg & bloom is different. More blue for veg (grow strong stem and large leaf), but more 660 red for bloom/flowering (big and more flowers). Especially professional led grow light for marijuana, cannabis medical plants. Acutually, par value is not the most important factor for a led grow light, but spectrum. White led light also produces high par, even higher than a professional led grow light, but compare the growing result, you will find the answer. Also uv&ir is with low par value, but they are so important for growing plants, especially medical plants.

 

 
The good
Veg&bloom dimmers
Easy installation
High quality & lifetime warranty
High yield flowering led grow light
Professional 12-band full spectrum
The bad
The design is rather boring.
 

Is not buying 300 watt led grow lighton the internet is dangerous?

Why there should be any reasons to worry? There are no risks in buying 300 watt led grow lighton the internet, sine you can always get a refund. You can also check the reputation of a seller just to be sure that your 300 watt led grow light will be delivered without any problems.

 

 
№ 3. Phlizon Newest 600w Led Plant Grow Light, with Thermometer Humidity Monitor, with Adjustable Rope, Full Spectrum Double Switch Plant Light for Indoor Plants Veg and Flower- 600w(10w Leds 60pcs)
 

Ease of use
5/5
 

Size
2/5
 

Durability
5/5
 

Quality
5/5
 
Overall Brand Model Dimensions Weight Details
4.3
Phlizon 15.8 x 2.4 x 6.7 inches 5.45 pounds
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Double switch- veg and bloom button have different function. Veg switch: it’s blue led and white led. For seeding or young vegetative growth, you can use veg switch only. Bloom switch: it’s red led and white led. For flowering/blooming, you can use both veg and bloom switches. Unique design- no light reflector no danger. Compare to hps/mh- the 600w led grow light can replace traditional 400 watt hps/mh while consuming only 108 watts. More effective coverage area than any reflector series lights. Perfect for a 2x2ft growing area at 24″ height. It includes universal blue red ir uv and white light provide everything plant desire in the natural sunlight. The expensive ir uv led promote plants to defense mechanisms, blue and red led is essential light for plant growth.

2 years warranty plus 30 days money back guarantee.

 

 
The good
Full spectrum
Best service
Unique design
Double switch
Compare to hps/mh
The bad
Smelled disgusting during the first days of use.
 

How long does the warranty lasts for a decent 300 watt led grow light?

You should buy 300 watt led grow lightfrom brands with customer-friendly warranty policy. Trustworthy 300 watt led grow light manufacturers offer two-year or even longer warranty period. You would not have any problems in case of any issues — simply take a broken product to the service center to get it replaced or fixed.

 

 
№ 4. Viparspectra Dimmable Reflector Series Ds300 300w Led Grow Light 12-band Full Spectrum for Indoor Plants Veg and Flower
 

Ease of use
3/5
 

Size
3/5
 

Durability
5/5
 

Quality
5/5
 
Overall Brand Model Dimensions Weight Details
4.0
VIPARSPECTRA DS300 14 x 8.5 x 2.8 inches 9.19 pounds
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Compares to traditional 250 watt hps/mh while consuming only 130 watts. Perfect for a 2×2 vegetative coverage at 24 while 1.5×1.5 flowering coverage at 18. Advanced high speed quiet fans and upgraded aluminum cooling heat sinks are easy for heat dissipation. The secret to the viparspectra led success is the optimal full spectrum which provides plants veg and flower all stages with everything they desire in the natural sunlight. Dimmable feature allows precise spectral control. 3 years local warranty plus 30 days satisfaction or return guarantee. Viparspectra dimmable reflector ds300 300w led grow light is scientifically engineered to keep the balance of the par output and coverage.

 

 
The good
Advanced high speed quiet fans
The bad
Not designed for regular use.
 

 

 
№ 5. Led Grow Light 300 Watt Hydroponics System, Full Spectrum Greenhouse Garden Indoor Plants Grow Lights Lighting Fixture, High Par and Penetration for Veg and Flower
 

Ease of use
2/5
 

Size
5/5
 

Durability
3/5
 

Quality
5/5
 
Overall Brand Model Dimensions Weight Details
3.8
Wattshine P300 10 x 2.5 x 7 inches 4.14 pounds
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Top quality ensure safely use and eco-friendly: every led has a zenor protect, if one led out, others will also work normally. Professional customer service, reply within 24 hours, and 3 years warranty plus 30 days satisfaction or return guarantee. Energy saving with flexible coverage: led grow light is more energy saving than traditional light bulb. Saving more money than hps/mh lamps. Perfect for a 2.5×2.5 growing area at 24 height. Powerful cooling fan system–cool and quiet. Holes on the aluminum panel and the glass make heat convection, run 50~60, lower than any other lights. High par value: adopted epileds 45mil double led chips 5w and equipped with 90 degree secondary optical lens, provided the highest par and spectral output per watt, the complete and ultra-efficient spectral output provides indoor plants at all growth stages with everything they desire in the natural sunlight. Perfect for indoor plants(fruits, vegetables and flowers).

Wattshine newest technology: 300w led grow lights has dual-chips leds, which is much brighter and more efficient than traditional single chip led grow lights. It is the highest par/lumen output per leds.

 

 
The good
Wattshine newest technology
High par value
Top quality ensure safely use
Energy saving
Powerful cooling fan system–cool
The bad
You will not be able to take it on a plane.
 

 

 
№ 6. Led Grow Light, 300w Grow Light Full Spectrum for Greenhouse Hydroponic Indoor Plants Veg and Flower
 

Ease of use
5/5
 

Size
2/5
 

Durability
3/5
 

Quality
4/5
 
Overall Brand Model Dimensions Weight Details
3.5
JHOTEC 11.5 x 7 x 2.3 inches 4.75 pounds
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Almost full spectrum grow light – jhotec led grow light is designed with reflector with each led and provides plants veg and flower all stages with everything they desire in the natural sunlight. (uv led is not included) and scientifically keep the balance of the par/lumen output and coverage. High efficient & energy saving – comparing with other led grow light, jhotec grow light is designed with two on/off switches for growth and bloom separately. It will save another 50% energy when you only want to increase the growth or bloom. (two modes can also be working at the same time. Excellent heat dissipation system – build-in two high speed and ul certificated cooling fans, this grow light ensure more efficient heat dissipation, reduce more than 20% heat than other models.

Please email seller if you have any question in installing and using the growing light. Flexible coverage & wide angle – 300w power and 90 degrees angle make it suitable for covering 2″x2″ growing area at 24″ height.

 

 
The good
Flexible coverage & wide angle
High efficient & energy saving
Excellent heat dissipation system
Almost full spectrum grow light
The bad
It is too easy to scratch.
 

 

 
№ 7. Advanced Platinum Series P300 300w 12-band Led Grow Light, Dual Veg Flower Full Spectrum
 

Ease of use
4/5
 

Size
3/5
 

Durability
5/5
 

Quality
2/5
 
Overall Brand Model Dimensions Weight Details
3.5
PlatinumLED Grow Lights P300 19 x 8.5 x 3 inches 13.1 pounds
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400w hps replacement with 4.5ft x 3.8ft coverage at 18″ height – perfect for compact applications or using multiple units for even coverage. Platinum led lights have the highest par/lumen output per watt of any led grow light. 2x-3x the intensity of any other lights. Selectable veg/flower switches with 2x high speed whisper quiet fans plus all new upgraded aluminum cooling heat sinks. Superior 12-band full spectrum from the depths of uv to the heights of ir – the most complete and efficient spectral output available.

 

 
The good
Superior 12-b
Selectable veg/flower switches
400w hps replacement
Platinum led lights have
The bad
It is too expensive.
 

 

 
№ 8. Kingbo 300w Led Grow Light Full Spectrum Double Switch LED Plant Light for Greenhouse Hydroponic Indoor Plants Veg and Bloom (12band)
 

Ease of use
4/5
 

Size
2/5
 

Durability
5/5
 

Quality
3/5
 
Overall Brand Model Dimensions Weight Details
3.5
KINGBO KB-GM300W-US 12.2 x 6.7 x 2.4 inches 5.45 pounds
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Worry-free warranty.3 years warranty plus 30 days satisfaction or return guarantee. Kb-m300 compares to traditional 250 watt hps/mh while consuming only 120 watts. Perfect for a 2.5×2.5 growing area at 24 height (max coverage 3×3 ). Full spectrum 12-band 380-740nm with the key spectrum uv and ir, provide plants veg and flower all stages with everything they desire in the natural sunlight. Kingbo kb-m300 built with dual optical lens (90 degree inside.120 degree outside), effectively increasing the light output, reducing light loss, improved high par / lumen output and maximize harvest. Selectable veg/bloom switches, two stages full spectrum customer choose freely according to the plant growth stage, easy to use.

 

 
The good
Kingbo kb-m300 built
Selectable veg/bloom switches
Full spectrum 12-b
Kb-m300 compares
The bad
You will have to learn using it.
 

 

 
№ 9. Wattshine 300w LED Hydroponics Growing System, Full Spectrum with Uv Ir LED Grow Lights, Low Noise and Energy Saving for Plant, Veg, Seed, Flower Growing Blooming
 

Ease of use
2/5
 

Size
4/5
 

Durability
3/5
 

Quality
5/5
 
Overall Brand Model Dimensions Weight Details
3.5
Wattshine P300S 10 x 2.5 x 7 inches 4.15 pounds
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Full spectrum: the led grow light uses 16 band double chips works as indoor sunshine, accelerated plants photosynthesis and shorten the period of growth, absolutely suitable for all stage of plants veg and flower. Widely used in greenhouses, plant factory, greenhouse farming, flower farming, indoor gardens, water soluble breeding, pipeline cultivation, grow tent, farm, potted plants, spray the plant, tissue culture and so on. High efficient: the unique design of 90 degree reflector cup concentrates the lights, ensuring high luminous efficiency & light penetration, maximizing the plants’ absorption of the lighting. The grow light can rapidly improve the health of plant and growing.

Best choice: the led grow light is not only can make your soiled plant or hydroponics growing rapidly and healthily, but also can shorten growth cycle. Top led grow lights factory directly retail wholesale on amazon best quality price with 2 years warranty. Double chips: this indoor grow light is designed with super bright double chips to produce much higher lux and lumen output than traditional 250w hps/mh light. It is perfect for a 2.5×2.5 growing area at 24 height.

 

 
The good
Widely used in greenhouses
Best choice
Double chips
Full spectrum
High efficient
The bad
Looks awful.
 

 

 
№ 10. Roleadro Upgrade and Newly Developed LED Grow Light Full Spectrum 2nd Generation Series 300w Plants Light
 

Ease of use
3/5
 

Size
2/5
 

Durability
4/5
 

Quality
3/5
 
Overall Brand Model Dimensions Weight Details
3.0
Roleadro HY-G08-60x5W-W 12.1 x 2.4 x 8.2 inches 5.45 pounds
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The high quality 5w chips and 120 degree lens magnifies par value and generates even 25 percent more nutrients to your plants. Only pull out 125w power, spending less on electricity and getting larger yield of better quality in the same time. The exclusive sunlight grow light in amazon: the leds emit the most vital light spectrum in one, it’s closer to natural sunlight with 3000k color temperature, and mixed majority of blue light ratio inside, which brings more leaves for photosynthesis. Professional cooling system: attached with a proper heat sink and etl certificated fans lets the heat flow out, and keep the temperature(26-28f) stay in a best condition for growth. And the fans noise sounds just like portable fans, won’t annoy you even you place it in the living room space.

From seed to harvest: every single led is full spectrum which is beneficial for whole phrase of growth, cos it can provide your plants with everything they need in the nature and offer your plants evenly light for growth. You just need to adjust the hanging height for different growth cycle.

 

 
The good
The exclusive sunlight grow light in amazon
The high quality 5w chips
Professional cooling system
The bad
Considering the price, the material quality could be better.
 

What are the risks of buying a 300 watt led grow light online?

Many people use online shopping every day. It is absolutely safe because you are secured by layers of customer protection programs. You are not risking anything by ordering a 300 watt led grow light since you can easily return it and receive your money back. We see no reason to worry while ordering goods online — it is a convenient, cheap, quick, and, of course, safe method of shopping.

What are your reviews based on?

In order to create this buying guide, our team had to go through hundreds of user reviews and compare dozens of 300 watt led grow light models and brands. Finding the best 300 watt led grow light nowadays is a hard task: the selection on the market is so high that you would have to spend months to study all available options. Thankfully, our TOP list will help you find a good 300 watt led grow light much quicker!

How expensive should a good 300 watt led grow light be?

Obviously, a good 300 watt led grow light cannot be very cheap. If you want to buy a decent product, you should not be trying to save money on it. We recommend you to order the best models from our list of the best 300 watt led grow lightif you can afford it.

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