Top 10 Best 300 Watt LED Grow Lights | Buyer’s Guide 2021

It doesn’t matter whether you’re a professional or a beginner in indoor growing; your plants need the best light possible to survive and sustain a healthy life cycle.

But the selection of lights should be according to your needs like growing plant types, the phase of your plants, and above all, your grow space.

Best 300 Watt LED Grow Lights of 2021

ModelDimension
Coverage Area
Wattage
Check Price
Meizhi 300W15.7” x 10.8” x 5.5”20-24": 2’ x 2’

130W Check Price
BloomSpect 300W11.8” x 8.3” x 2.4”Veg: 24”:3’x3’
Bloom : 20”:2’ x 2’
132w Check Price
Roleadro 2nd Gen 300W14.57” x 11.02” x 2.36”18-24”: 3’ x 3’

125w Check Price
Meizhi Reflector 300W12.6” x 7.9” x 3”18”:2’ x 3’
139w Check Price
Maxisun Dimmable 300W15.7” x 8.4” x 2.4”Veg: 24-26”:3.5’x 3.5’
Bloom : 18” : 2.5’ x 2.5’
142w Check Price
Marshydro 300W 12” x 8” x 3”12”-30”: 2’ x 2’
132w Check Price
ViparSpectra Reflector 300W12.6” x 7.9” x 3”Veg: 24” : 2’ x 2’
Bloom: 18”:1.5’ x 1.5’
136W Check Price
Roleadro Galaxyhydro 300W 12.1” x 8.2” x 2.4”Veg : 24” : 3’ x 3’
Bloom : 22” : 2.5’ x 2.5’
132w Check Price
Roleadro Galaxyhydro 300W Daisy chaining 15.8” x 8.3” x 2.4”24”: 3’ x 3’
140W Check Price
Advanced Platinum P300 300W 19” x 8.25” x 3”Veg : 24” : 4.5’ x 3.8’
Bloom : 18” : 3’ x 2’
93W-180W Check Price

If you’re planning for a smaller sized garden with fewer plants, then investing your money in massive high duty grow lights don’t seem like the right move.

Explore the review of the top 10 reliable 300 watts LED grow lights, and you can quickly identify which will suit your needs.

Let’s get started.

10. MEIZHI 300 Watt LED – Grow Light For Indoor And Hydroponic Grow

The first beast we’re reviewing is from a well know manufacturer on the LED light market. As it gets cleared from the title itself, this 300 watts LED grow light can be used for hydroponic plants and other growing plants that are usually planted and raised in the soil like cannabis or weed.

If we talk about its form factor, then it’ll come in the dimensions of 15.7” x 10.8” x 5.5” and weighs 7.15 pounds while shipping.

When it comes to efficient light, it can provide full-spectrum light for your plants; that’s what the manufacturer claims.

This LED is equipped with 60 Epistar LEDs; each operated on the 5W chip. And the focusing angle of these LEDs is mixed with 90 degrees and 120 degrees, Which results in an even light spreading mechanism for your weed plants.

With an average power draw of 130 watts, this 300 watt led light can provide an average coverage area of 2’ x 2’. This Grow Light suits the Hydroponic, indoor greenhouse, seedling, vegetative, and flowering phases.

Pros:
  • Efficient Light Capabilities.
  • Sturdy Product.
  • Light Suitable For All Plants And Stages.
  • Cost-effective power draw.
  • Effective Cooling.
Cons:
  • Not Waterproof.
  • No Dual Mode Switch.

9. BloomSpect 300 Watt – LED Grow Light For Indoor Growing

When we’ve looked at this full spectrum LED grow light, our prediction was shocking. We considered this product to be an affordable 300W LED grow light. Still, when we researched its capabilities and taken opinions from existing cultivators with this BloomSpect Grow Light, our perception was proven wrong.

Yeah, it’s not just an affordable product with average capabilities. If you’re also guessing it to be affordable just because of its price, its price is low because it’s being priced competitively.

It is offering everything that you’ll expect from highly-priced products from the LED Light Tycoons.

If you’re searching for a 300W LED light for your 3.28’ x 3.28’ x 6.56’ grow tent, then it comes in the dimensions of 11.8” x 8.3” x 2.4” and weighs approximately 6.7 pounds.

Using 60 Epistar LEDs of 5W chips, it’s well capable of providing the best suitable full spectrum light for your plants. It’s being said that this grows light can mimic real sunlight by providing blue, red, and white bands of light.

This 300 watt LED light comes with daisy chaining abilities, so you can always expand your grow space by extending another grow light with it. On the other hand, it also doesn’t have any dual-mode switches, so it’s recommended to set it at the height of 24”-28” during the seedling, 16-20” during vegetation, 12”-18” during flowering.

This 300W LED grow light comes with 3 years of manufacturer’s warranty and 30 days money-back guarantee.

Pros:
  • Full Spectrum Ability.
  • Suitable For All Kind of Plants.
  • Marvelous outcomes.
  • Daisy-chaining.
  • Efficient cooling.
  • Coverage Area.
  • Cost Savvy Power Consumption.
Cons:
  • No dual-mode switches.
  • Not Waterproof.

8. Releadro 2nd Gen Series – 300 Watt LED Grow Light

Selection of the best 300 watts LED Grow Light becomes easy when someone makes some advancements in their products to serve their customers with highly efficient products. And that’s what Roleadro had proven by manufacturing this beast.

This Grow Light performs at its best throughout your plant’s life cycle. Yeah, from seedling to harvest, it’s going to be the best companion for your plants if you plan to invest your money in it.

With maximum blue light capability, it can bring magic inside your grow tent. Yeah, the blue light ratio in this 300 watts Grow Light can improve leaf building in your plants.

This amazing grow light is equipped with 60 LEDs with a 5W chip, and 120 degrees angle of these LEDs helps generate 25% more nutrients for your plants by improving the photosynthesis process.

When it comes to the dimensions of this LED light is 14.57” x 11.02” x 2.36” and it weighs around 5.45 pounds while shipping.

At a recommended height of 18”-24”, it can cover around 3’ x 3’ of your grow space. This Grow Light needs to be adjusted accordingly when your plants grow phrase changes from one to another.

Pros:
  • Advanced and Well Researched Product.
  • Effective Full Spectrum Ability.
  • Cost Savvy Power Draw.
  • 120 Optical Lens for Even Grow Light.
  • Suitable For All Stages.
  • Noiseless Fans.
Cons:
  • No Dual Mode Operation.
  • No Daisy Chaining Ability.

7. MEIZHI Reflector Series – 300 Watt LED Grow Light

Surprised to see one more from the same manufacturer? It’s with some advancements in itself.

This 300 watts LED light from Meizhi has some of the advanced features not included in its previous sibling.

With a reflector panel and 120 degrees focusing angle of LEDs, it can maximize light spreading efficiency, which results in heavier yields and more resinous buds in hand at the end.

With this potential, it only consumes 139W of average electricity while in operation. Which is equivalent to 300W HID system and can easily replace an HPS system of 250W-300W.

It has multiple high-speed fans that are capable of keeping it cool. During veg mode, fans will be ON, while during Bloom, it’ll be OFF, and if you keep Veg and Bloom both ON, then fans will be ON.

This beast also comes with 1 year of manufacturer’s warranty and 30 days money back challenge.

Pros:
  • Optimal Full Spectrum Light.
  • Dual Mode Operation.
  • Comparatively Better Coverage Area.
  • Light Suitable For All Kind of Plants and Phases.
  • Lesser Power Consumption.
  • Heavier Yields.
Cons:
  • Skeptical Fan Operation.
  • Short Warranty Period.

6. Maxisun Dimmable – 300 Watt LED Grow Light

Didn’t you found the best companion for your indoor garden in the segment of 300 watts LED light? Then, this is one of the best 300 watts LED grow lights we’re going to review in this article. After reading about this product, you will most probably get the best companion for your weed plants.

This dimmable 300W LED light from Maxisun is a magical piece from the manufacturer. That’s because its quality of light and possible tweaks in settings is a marvelous addition to this grow light.

This 300W LED light is equipped with 62 Epileds/Bridgelux LEDs of 5W each, and the systematic placement of these chips on the panel makes it different from other full spectrum LED grow lights.

Recommended heights for placement are 24”-28” during Germination/Seedling, 18”-24” during Vegetation and 16”-20” during flowering.

Product dimensions are 15.7” x 8.4” x 2.4”, and at the recommended height, this 300W LED light can cover around 3.5’ x 3.5’ of grow space during vegetation while 2.5’ x 2.5’ of grow space during flowering.

The average power draw of Maxisun 300W LED light is 142W, which can easily replace a 250W HPS system.

When it comes to heat management inside grow space, they’ve equipped this grow light with multiple cooling fans and aluminum heat sinks.

This product comes with 3 Years Warranty period and 60 days hassle-free return policy.

Pros:
  • Marvelous Full Spectrum.
  • Dimming ability.
  • Daisy-chaining.
  • Health improvement by precise placement of LEDs.
  • Dim but effective IR.
  • Excellent coverage area.
  • Competitive price.
Cons:
  • No timer.
  • Not Waterproof.

5. MarsHydro 300W – Full Spectrum LED Grow Light

This fabulous piece from well-known manufacturer MarsHydro is designed for everyone who wants to make their plants happier forever.

This Grow Light is one of the Best 300 watt LED grow light which won’t let you down ever. When it comes to the quality of light, it is equipped with 60 Epistar LEDs of 5W each, and the color band is balanced by scattering all over the Grow Light panel.

This Grow Light can deliver a wavelength of light that your canopy can fully absorb and get all essential nutrition required by the sunlight.

The form factor of this 300W LED light by MarsHydro is 12” x 8” x 3”, and it weighs around 5.58lbs while shipping.

At a recommended height of 12” to 30”, this marvelous piece can cover around 2’ x 2’ of grow space easily by providing full-spectrum light to your plants.

This product only consumes 132W of electricity, but the effect and quality of light can replace an HID system of 150W.

When it comes to usability, it is not just a grow light used for the plant in the soil; it can also be used for hydroponic plants. Yeah, it can help all kinds of plants sustain better health and improve yield per watt of electricity.

It comes with 1 year of authentic warranty and 30 days money-back guarantee.

Pros:
  • Full-spectrum light.
  • Sustainable Plant Growth.
  • Well Experienced Customer Base.
  • Sturdy Product.
  • Efficient Cooling.
  • Electric Safety Assurance.
  • Automatic Timer.
Cons:
  • Not Dual Mode Switch.
  • Not Waterproof.
  • No Dimmable.

4. ViparSpectra Reflector Series – 300 Watt Full Spectrum LED Grow Light

ViparSpectra is yet another huge name on the LED grow the light market. They are known for manufacturing the best LED grow light for fellow cultivators. When it comes to Best 300 watt LED grow light, then it can’t be forgotten.

This 300W beast is equipped with 60 pcs 5W Epistar/Bridgelux LEDs that generate immense light for your growing plants.

Its reflector style is the best addition to spread light evenly over your plants and provide all plants with an equal amount of light.

This light can be used for multiple purposes so that you can use it for your hydroponic plants.

The form factor of this amazingly designed 300 Watt LED light is 12.6” x 7.9” x 3”, and it weighs approximately 6.95 pounds.

At 24″ height, it can provide you with 2’ x 2’ of coverage area during vegetation, and on the other hand, it can cover around 1.5’ x 1.5’ of coverage area during flowering at the height of 18”. And on a side note, the actual power draw of this 300 Watt LED light is only 136W, which can easily replace your HID/HPS system of 250W.

This product comes with a daisy-chaining feature and lets you connect another grow light with it directly whenever you plan to expand your grow space.

It has advanced and well-researched placement of aluminum heat sinks. It also has multiple and extremely silent cooling fans to avoid excessive temperature inside your grow tent.

This marvelous product comes with a fabulous warranty period of 3 years, and manufacturer’s also offering 30 days money back return policy.

Pros:
  • Optimal Full spectrum light.
  • More resinous buds.
  • Scientific Design.
  • Daisy chainable.
  • Effective Cooling.
Cons:
  • Comparatively smaller coverage.
  • Not waterproof.

3. Roleadro GalaxyHydro Series – 300W LED Grow Light

Here’s our 3rd top most product available in our best 300 Watt LED light reviews.

This beast from Roleadro has some fantastic abilities which attract many experienced cultivators too.

Unlike other 300 watts LED grow lights, this is not equipped with 60 LEDs; instead, it is equipped with 100 LEDs of 3W each, Which increases the proportion of light for growing plants. This placement results from their 9 years of research, and it proves its ability to generate full spectrum light for your weed plants.

If you’re concerned with its dimensions, it’ll come in the size of 12.1” x 8.2” x 2.4,” and it weighs 2.5Kg at the time of shipping.

Generated light covers all essential bands, and on the other hand, it also has one IR and one UV light that is enough for 300W LED light because excessive IR and UV don’t make sense and harms your plants.

As far as coverage area is concerned, then this grow light by Roleadro can cover around 3’ x 3’ of grow space at the height of 24” during vegetation, and on the other hand, it’ll cover around 2.5’ x 2.5’ at the height of 22” during flowering.

Power consumption is also fabulous and results in more yield per watt of electricity as it only consumes 132W of electricity by providing nutritional light to your plants.

If you’re bothered about the temperature inside your grow tent, then its marvelous cooling system and scientific design won’t let you down. As the panel used for grow, light is scientifically designed and equipped with perfect circuit drivers that don’t generate too much heat. But, still, it has advanced sinks as well as cooling fans for fabulous heat dissipation. This excellent piece of satisfaction comes with 2 years of manufacturing warranty and lifetime consulting service.

Pros:
  • Excellent And Well balance light proportion.
  • Light intensity.
  • Scientific design.
  • Cost savvy power consumption.
  • Better Coverage area.
  • Excellent cooling.
Cons:
  • No dual mode.
  • No Daisy chaining.

2. Roleadro GalaxyHydro Series – 300W LED Grow Light with Daisy chaining

Yeah, it’s from the same manufacturer and with some advancements in the specifications compared to its previously reviewed sibling.

While inquiring users, we found that some of them were disappointed as they wanted another same light for their grow-space, but they needed one more power outlet inside the tent, which wasn’t feasible.

And that’s the reason this marvelous piece is chosen as the Best 300 watt LED light in our segment review.

Yeah, they’ve done some of the modifications in their advanced version of the product, resulting in a bit higher cost than its sibling.

This product comes with dimensions of 15.8” x 8.3” x 2.4” and weighs 7.65 pounds. Based on these stats, you can determine whether it’ll suit inside your grow tent or not.

If we talk about its light, which should be our primary concern, it won’t disappoint you. Products which has been launched after huge research tends to be demanding in the market. And this one is one of that kind.

Now, let’s come to the point. This Grow Light by Roleadro delivers optimal full-spectrum light, which includes a taste of UV and IR. This Grow Light is equipped with 100 LEDs of 3W, which is placed systematically on the panel. It uses Zener to prevent break down in case any of the single LEDs stop working.

The excellent spectrum of light with a red to a blue ratio of 8:1 is best for your plant. This ratio helps your plants to sustain better health at its best while it improves your plant’s capabilities of growing heavier and resinous buds for you.

The coverage area by this 300 watts LED light is specified to be 3’ x 3’ at the height of 24” where the focusing angle of 120 and 90 degrees does their job correctly.

Power drawn by this beast is claimed to be 140W, which can easily replace your 250W-300W of HID/HPS systems.

Daisy chaining is one more advantage added to the product, which lets you connect multiple LED grow lights together using a single power outlet. The lack of dual-mode switches may disappoint you as it doesn’t have any dual-mode operational switch.

As far as heat management is concerned, then you don’t have to worry about it. As this scientifically engineered 300 watt LED light comes with advanced aluminum sinks as well as multiple cooling fans.

Pros:
  • Extremely beneficial light.
  • A required amount of IR and UV.
  • Excellent coverage area.
  • Cost savvy power consumption.
  • Flexible daisy-chaining.
  • Marvellous cooling system.
Cons:
  • Dual mode switch.

1. Advanced Platinum Series P P300 – Full Spectrum LED Grow Light

And the beast arrives at the ceremony. Emperors usually don’t need an introduction. Here, we’re reviewing the best 300 watts LED grow lights, and hence the Best can’t be neglected. We’ve already discussed this marvelous piece by Advanced Platinum in our buyer guide related to grow lights. But, we’ll give you a short introduction to this product.

This 300 Watt LED light Packed with everything that’s expected in an extraordinary indoor growing light. But one of the best features about it is it’s PAR/lumen output. Which helps a grow light to generate the most efficient light. Excellent full spectrum will be delivered to your little plants.

It’s observed that it makes your plants happier during flowering by delivering tremendous and most required red spectrum amazingly. Which in turn results in substantial yield. On the other hand, it utilized less electricity, which lets you save your bucks in long turn…

For more information about this beast in our series of best 300 watts LED Grow Light, please click here.

Do check out: Best 600 watt led grow lightsSmall grow tent, and Best LED grow lights of 2020 For Indoor weed growing.

Final Words On The Best 300 Watts LED Grow Lights

Those friends of mine who’re concerned with their budget shouldn’t worry at all because we’ve covered 4 cheap 300 watts led grow lights that are budget-friendly yet powerful for your garden.

  1. MarsHydro 300W Full Spectrum LED Grow Light.
  2. Releadro 2nd Gen Series 300 Watt Grow Light.
  3. BloomSpect 300 Watt Grow Light For Indoor Growing.
  4. MEIZHI 300 Watt LED Grow Light For Indoor And Hydroponic Grow.

If you’re not sure whether you’ll expand your grow space in the future or not, we recommend you to buy one with daisy chaining ability.

  1. Roleadro GalaxyHydro Series 300W LED Grow Light with Daisy chaining.
  2. ViparSpectra Reflector Series 300 Watt Full Spectrum LED Grow Light.

If you want to keep things in control and feel stressed about the amount needed for your plant, start with one where the intensity of light stays in your control and daisy chaining ability as after getting sure, it’ll help you to expand your grow space.

  1. Maxisun Dimmable 300W LED Grow Light.

We recommend Advanced Platinum Series P P300 Full Spectrum LED Grow Light based on its technical and practical abilities and many recommendations by the professional lobby itself.

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