Best 300 Watt Led Grow Light in 2022 [*Detailed Reviews*]

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Looking for the best 300 watt led grow light available? We’ve got you covered. Check out the ratings of absolute bestsellers below and make a final decision.

1588 Reviews Scanned

Bestseller No. 1
VIPARSPECTRA 300W LED Grow Light with Daisy Chain Function, Full Spectrum Plant Growing Lights for Indoor Plants Veg and Flower
  • 【Optimal Spectrum】The secret to VIPARSPECTRA’s success is optimal full spectrum lighting which provides plants in all stages from veg to flower with everything they need in the natural sunlight. This results in bigger buds and higher yield all while saving you on energy costs.
  • 【Daisy chain Design】 Daisy chain feature assists growers to connect multiple lights together with fewer outlets. No additional cords is needed, just simply plug in the provided power cord into the second light's outlet to achieve connection among multiple units.
  • 【Outstanding Design】Sturdy durable construction with fire-resistant iron housing. Suitable for each growing phase. Upgraded aluminum cooling heat sinks and advanced high speed quiet fans are great for heat dissipation.
  • 【Coverage Area】Comparable to traditional 250W HPS/MH while consuming only 130W! Perfect for a 2’x2’ vegetative coverage at 24” and 1.5x1.5’ flowering coverage at 18”.
  • 【Worry-free 3 Years US warranty】We are a professional manufacturer which specialized in LED grow light for many years. Products' quality and professional customer service are always our Top concerned. We offer 3 Years local warranty and 30 days money back guarantee. If you have any questions, please feel free to contact us. We will offer you professional guidance to help you and your plants grow better.
SaleBestseller No. 2
150W LED Grow Lights for Indoor Plants Full Spectrum Panel,Hanging Plant Light with Remote,Timer,3 Switch Modes,Dimmable 98 Plant Growing Lamps for Seedling,Hydroponic,Greenhouse,Succulents,Flower
  • Full Spectrum Growing Light: Equipped with 98 high-efficient LEDs (61Red+16Blue+2UV+5IR+7CW+7WW), the grow lamp can meet the conditions for plants to grow when there's no sunlight. The full spectrum (390nm-730nm) is suitable for all plants to root and sprout; the red (660nm) + blue (450nm) spectrum is great for blossoming and bearing fruit; and the red+blue+full spectrum (the mixed light of red+blue+warm white+IR+UV+CW+WW) is perfect for the promotion of plant growth.
  • Better Design: The design of no fan and no noise ensures the grow lights can provide you with a better experience of use. In addition, the plant lamp simulates the change of light during the day and night. The concentrated light helps reduce light loss as well as improve the output and light utilization rate brought by light.
  • 3 Modes & 4 Brightness Levels: Koopower LED grow lights feature VEG, BLOOM and FULL modes. The VEG mode is used in the germination or early leaf stage of the plant, the BLOOM mode is used in the flowering and fruiting stages, and the FULL mode is to better control the production quality. And there are 4 brightness levels that can be adjusted in each mode.
  • 1-20h Timer & Remote Control: The indoor grow lights come with a remote control, on which you can randomly set the timer from 1 to 20 hours. Additionally, the plant grow light can remember your last setting and automatically turn on the next day (under timing mode). In this way, the plant growing lamp can take care of your plants even when you're at work or on vacation.
  • Multi-Connectable Design & Wide Application: The new version of the hanging LED indoor plant lights can be connected through a power point for a wider lighting area (do not exceed 6 panels). They can be used for hydroponics in the soil and indoor plants, such as orchids, potatoes, lettuce, peppers, tomatoes, or aquarium plants (greenhouse, garden, vertical farm, planting tent, growing room). We promise to provide a 14-month warranty.
SaleBestseller No. 3
LED Grow Light Indoor Plants - 300W 420LED Plant Light with 63" Extendable Tripod Stand,Dual Controllers,Full Spectrum,4/8/12H Timer,Adjustable Gooseneck,4 Switch Modes for Greenhouse Veg and Flower
  • 【2021 New Upgrade & LOWER RUNNING COSTS & HIGHER-QUALITY YIELDS】: LECLSTAR Grow light for indoor plants, Four-Head three-row designs, the whole lamp is composed of 420 LED high-brightness lamp beads. It only needs 40W of power to transmit 300W, high efficiency, and energy-saving, LECLSTAR Grow light can increase the growth rate of indoor plants by 50% compared to other grow lights.Meanwhile our high-quality aluminum shell are great at heat radiation with a lamp life of up to 50,000 hours.
  • 【Dual control, automatic on/off】 LECLSTAR Grow light with line-in controller and RF controller. Plant light Support 3 light modes, 10 dimmable levels, 4 lights independent control, and auto on/off every day after setting the 4H/8H/12H timer,so there is no need to worry about plant withering when nobody at home.every feature is comendable. UL certified adapter with USB plug, more safe and flexible to use in anywhere with the grow light
  • 【Adjustable height, easy to install】 Just within two minutes! Open the tripod, adjust height(Adjustable tripod stand extendable from 11 inches to 75 inches, just lock it at desired length for your preferred use.), turn the screw clockwise until it’s secured, place the grow light on the tripod, turn the screw counterclockwise until the plant light is fully seated.Grow light Suitable for indoor plants, greenhouse, darkroom, living room, office large and tall plants, flower show, potted plants.
  • 【Full Spectrum grow light & larger lighting area】1.Red(660nm)+Blue(460nm): promote plant growth, flowering and fruit. 2.Warm White:3000k high uniform light, like sunlight,improve seeding growth. 3.Red+Blue+Warm White(380nm-780nm):Enhance red and bluelight based on natural light,effectively promote growth.Besides,the 4-head grow light has a 360-degree flexible gooseneck made from high quality tubing to adjust an ideal illumination angle and Provides a larger light exposure range for your plants
Bestseller No. 4
300W LED Grow Lights, 3000K Foldable Plant Grow Light with 338pcs LED, Full Spectrum Grow Light with 3x3ft Coverage for Indoor Plants Seeding, Flowering, Fruiting, Veg, 9000Lux High PPFD Growing Lamp
  • 🌼【Sunlike Growing Lights for Indoor Plant】 Full spectrum lighting is similar to the natural sunlight and suits for all plants whole stages indoor growing. The grow light for indoor plants adopted 338LEDs, with spectrum 380nm-800nm, fits all stages of growth seeding, germination, vegetative, flowering.
  • 🌼【Efficiency lighting & Higher-Quality Yelds】 SWAREY plant lights -Each 90° reflector to make the light source more concentrated, more efficient than 60°, and the irradiation area is larger. replaced traditional 300W HPS/MH while consuming only 110±5%W. Doubled area of illumination than other 300W plant lamps. The 90° reflecting cups improve the utilization rate of light up to 98%.
  • 🌼【Heat Dissipation & More large irradiation area】 The ultra-thin aluminum back panel achieves excellent heat dissipation. We adopt aluminum heat back panel, plus a small heat sink for each chip to achieve excellent heat dissipation. Cover with 4 stainless Hanging kits for easy hanging, extra-long 60inch power cord, recommended covering an area of 32"x32" to 56"x56" and be hung at around 10"- 40".
  • 🌼【WIDELY APPLICATIONS】Our led plant grow lights can be used for both hydroponics and indoor plants, home & office gardening, greenhouses, grow tents, balcony, seed, seedling, breeding, flowers, herb, hydroponics, pot plants, fruits and vegetables like tomatoes, lemon, cacti.
  • 🌼【Safety Protection System】 The plants grow light adapting the integrated light source. It has been certified by the FCC, CE, ROHS, and PSE as well as offering over-current, overheating, and over-voltage protection. All products were strictly through high temperature test and check before sent out, you can use safely. It is a best gift for your cute plants.
Bestseller No. 5
300W 54 LED Grow Lights, Full Spectrum Little Solid Grow Lamp with IR & UV LED Plant Lights for Indoor (Space-Saving)Plants,Micro Greens,Clones,Succulents,Seedlings
  • High Cost-Effictive High Efficiency:Feature afford price with energy-saving. Save 90% energy compared with HPS/HID. Beat HPS/HID and traditional LED Light.Covers a full 2' x 2', easily replace a 300W HPS or HID while consuming 30 watts of actual power
  • New Upgraded Epistar LED Chips:Less heat release than other general grow light led's 1/3, High Par Value and High Lumen, Minimum Heat, Maximum Growth(photosynthetically active radiation)ensured high light absorption of plants to maximize the plant growth and harvest. Higher lumen and long lifespan ensured
  • Best VEG-BLOOM Full Spectrum: Special ratios of Blue/Red/White Spectrum which based on 10 years of research and testing can be fully absorbed by the plant to photosynthesis, Best for fast growth and high yield.
  • Won't Burn Plants:Keeping heat off plants is essential. By using self-cooling aluminum and a unique heat sink design to maximize heat dissipation area, the LED maintains a cooler temperature even after 24 hours of continuous use
  • Reliable Product and Service Guarantee:Little solid grow light,which would give your adorable plant or life vegetable a comfortable environment.The light of ours is not very strong,but suitable for the growth of plant.If you find your plant do not like it ,please tell me,we would solve it for you asap and 100% refund as you want.
Bestseller No. 6
MARS HYDRO FC-E3000 300Watt LED Grow Light 3X3ft UV IR Full Spectrum Grow Light Bar with 1184pcs Diodes & MeanWell Driver, Dimmable & Detachable Grow Lampe for Veg Bloom Flower, Achieve 2.8 umol/J
  • HIGH-EFFICIENCY LED GROW BAR LIGHT: FC-E3000 grow light with 1184pcs BridgeLux Diodes & Meanwell Driver, market-leading PPF 2.8 µmol/J, Max 2.5g yield/watt with 30% higher Average PPE, more cost-effective compared with other same type lights.Only consumes 300W, perfectly cover 3x3ft (personal), 2.5x2.5ft (commercial) grow space.
  • INNOVATIVE PRECISE UNIFORM LIGHTING: Built-in removable bars interval & dimmability enable the exact & dynamic PPFD control over each of the plant growing stages, FC-E3000 detachable bars deliver highly uniform adjustable,PPFD levels throughout the plant canopy,best for more uniform Density Buds.
  • SUPERIOR HEAT DISSIPATION: Real Aluminum heatsink together with 4 slim profile passive cooled bars (THINNER & LARGER surface) and detachable Meanwell Driver, create less heat, save 50% energy than other old grow lights! Driver can be mounted remotely on the side of a grow tent/rack or on an adjacent wall to remove heat from grow space.
  • FULL SPECTRUM UV IR GROW LIGHT: With Yield Max spectrum (660nm Osram enhanced Deep Red,2800k-5000k,730-740nm IR,380-410nm UV LEDs), Average PPFD FC-E3000 LED grow lamp enable cultivators to produce Density Buds, perfect for full-cycle hydroponic,soil,grow tent/room growing.
  • DIMMABLE COMMERCIAL GROW LIGHT: Cost-efficient,easy dimming & daisy chain max up to 20 lights, IP65 Waterproof, master light easily controlled for commercial & home horticulture. Trusted 5 full years warranty, any question, pls feel free to email us,100% Satisfactory Solution guaranteed!!!
SaleBestseller No. 7
LED Grow Light, VIPARSPECTRA P600 LED Grow Light with Samsung LEDs (Includes IR) 2x2ft Coverage, Full Spectrum Dimmable Plant Grow Lights for Indoor Plants Veg Flower Four for 4x4ft 300pcs LEDs
  • LOWER OPERATION COST & DIMMER FUNCTION: VIPARSPECTRA P600 LED grow light has adopted the newest SMD LED Technology to provide high PAR output, high energy efficiency and long lifespan while improving light penetration. An added dimmer knob is featured to manipulate the brightness level of the entire light, allowing flexibility to obtain perfect growth performance for each growing phase.
  • SUNLIKE FULL SPECTRUM LIGHT For INDOOR PLANTS: Consists of 660nm of red light, IR, 3000K and 5000K of the white light spectrum, provides plants in all stages from veg to flower with everything they need in the natural sunlight. Achieve greater yield while saving you on energy costs!
  • SLEEP-FRIENDLY GROW LIGHT: Silent fanless design. No fans zero noise. Built-in large areas of solid aluminum heat sinks, essential for heat dissipation while ensuring long lifespan of the light.
  • LOW ENERGY CONSUMPTION GROW LIGHTS: Comparable to traditional 200W HPS/MH while consuming only 95W! Perfect for 2’x2’ vegetative coverage at 18”and 1.5’x1.5’ flowering coverage at 14”. Remember to properly adjust the height and brightness accordingly to your plants desired level for optimal growth.
  • WORRY-FREE WARRANTY: Plug and Play. No installation required. Product quality and friendly customer service are always our top priority. We offer worry-free 36-month local warranty and professional guidance to help you and your plants grow better.
Bestseller No. 8
Grow Light for Indoor Plants, Relassy LED Grow Lights for Seed Starting, 338 LEDs, 22" Large Grow Panel Light, Full Spectrum Indoor Plants Grow Light for Veg and Flower Greenhouse Hydroponic
  • ►WHY CHOOSE US but not other red and blue spectrum pink light? - Because we truly offer a sunlike full spectrum contains all wavelengths of light from 380nm to 800nm, delivers more highly-uniform light needed by plants than those single red and blue spectrum led grow light on the market, the most top lighting solution for commercial growers and home hobbyists. 90°reflector cup LED with high par value: 565 μmol/m2·s at 12in. Help plants grow healthier and more vigorous with abundant.
  • ►CUSTOMIZE GROW LIGHTING TIME - This sunlike full spectrum led grow light is 24-hour always on mode. It can support outer timer for most indoor plants' different growing period needs. We suggest to set the lighting time of 18 hours for germination, 12-15 hours for flowering & fruiting, 8-12 hours for seedlings.
  • ►BIGGER is BETTER - Equipped with 338LEDs, replaced traditional 300W HPS/MH while consuming only 110±5%W, 89% energy saving. Doubled area of illumination than other 300W plant lamps, great for 3’ X 3’ growing area at 18 inches height.
  • ►NO FAN & NO NOISE - Compared with other 300W indoor plant grow light with noisy fan, we adopt aluminum heat back panel, plus a small heatsink for each chip to achieve excellent heat dissipation. You can even hear the sound of flies flying and you can’t hear any noise while it is working.
  • ►BEST QUALITY & SERVICE - Our grow lights adopt the technology of overcurrent, overheating, overvoltage protection, also have been certified by FCC, CE, ROHS, and PSE. What’s more, it comes with 2 years authentic warranty & 30 days money back without reason if the light had any problem. Try it free 🙂
Bestseller No. 9
Led Grow Lights,300W Led Grow Light for Indoor Plants with 4 Dimmable Levels 3 Modes Timing Function,Indoor Grow Lights for Seed Starting,Hydroponics Growing Light, Multiple Panels Can Be Conn
  • 【Led Grow Light with Cycle Timer】MSMKEJI led grow lights for plants has a built-in cycle timer,and there are 1-20H timer setting options For Your Choosing.The led plant light for indoor plants will automatically turn on every day as your setting, Even you're on the travel, These full spectrum led grow light will still take good care of your plants every day!
  • 【3 Modes & Rremote Control】The Led Grow Lights for Indoor Plants with 4 Dimmable Levels 3 Modes Timing Function cater to all of your all needs,bringing an excellent use experience!This plant light has more Red&Blue light create an improved environment for plants to prosper. The remote control can be used to adjust the mode,timing and brightness of the led grow light,Extremely intelligent,convenient!
  • 【Full Spectrum LED Grow Light】 100% Premium.This plant grow light for indoor plants contains a optimal spectrum which promotes plants at various stages of growth,and its IR and UV LEDs form an invisible protective coating around your plants to ensure a completely sound growth. An ideal led grow lights full spectrum for all kinds of plants, help them go from sprouting, growing, blooming to fruit bearing.
  • 【Widely Used Plant Grow Light】MSMKEJI led grow lights for indoor plants can be used for both hydroponics and indoor plants in soil, such as orchid, potatoes, lettuce, chili, tomatoes, cucumbers, peppers, leafy greens, and herbs.aquarium plants like algae that in greenhouse, garden, vertical farm, grow tent or grow room.
  • 【Best Consumer Service】We have great faith in our Led grow lights for plants.A full refund within 30 days since the day of purchase for no reason. Each one of them comes with a 1-year technical support.You will be given a completely satisfying answer within 24 hours if you have any problem or doubt, and we are always be with you.
Bestseller No. 10
MARS HYDRO TSW 2000 Led Grow Light 300 Watt 4x4ft Coverage Full Spectrum Growing Lamps for Indoor Plants Dimmable Daisy Chain Seeding Veg Bloom Light for Hydroponics Greenhouse Indoor LED Grow
  • HIGH REFLECTIVE HOOD DESIGN Unique high reflective aluminum hood reduce light lost to aisles and walls, increase the light intensity up to 30% more than other non-reflector led grow lights. Maximize the use of all light, concentrate more light, increase light penetration, and improve PAR output and energy efficiency.
  • LOW ENERGY CONSUMPTION LED GROW LIGHT: Consuming only 300 Watts true output with 704 LEDs, can replace a 450Watt HPS/CMH grow lights! It saves up to 50% more energy than other led grow lights. Perfect for 3.5x3.5ft bloom stage, 4x4ft veg stage. Over 90% of light energy can be absorbed by plants, higher intensity in a MARS HYDRO grow tent, reflective area, or by crossing over using multiple TSW2000.
  • UPGRADED COMMERCIAL LED GROW LIGHT, easy dimming & daisy chain function, up to 15 multi-lights connected, convenient main light controlled; 2 auto-sensing power supply works on both 120VAC and 240VAC and 277VAC, suit for Large Rooms and Commercial Setups
  • HIGH-EFFICIENCY FULL SPECTRUM LED GROW: NEWEST SMD LED technology provides highest PAR/LUMEN output([email protected]"), make you get 30% higher yield to compare OLD HPS/CMH led lights; 3000K 5000K and IR 660nm 760nm RED, infinite close to natural light, highly engineered to provide improved growing performance for plants all stages growing, rapid plant response from seed to flower
  • WORRY-FREE PURCHASE Mars Hydro products come with 60 months US local warranty, 30 days money-back guarantee, and professional after-sale customer service. Make sure to purchase authorized products of Mars Hydro other than many imitations of our products. If any questions about the products, please feel free to contact us, we will reply within 24 hours.

Choosing the Best 300 Watt Led Grow Light: Tips Buying Guide

Laying your hands on the best 300 watt led grow light comes with ebbs and flows. It’s natural, for finding a quality 300 watt led grow light (just like any other product) suggests browsing through tons of item specifications, customer reviews, price variations, warranty details, and 300 watt led grow light ratings.

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If you’re still on the fence about what 300 watt led grow light to buy, this 300 watt led grow light buying guide might be right up your street. Here, we let you in on how we compile our best-rated 300 watt led grow light roundups and reveal the criteria we take into account.

Now, when shopping for the top 300 watt led grow light, some of the following questions probably linger through your mind:

  • How much money am I ready to spend on it?
  • What should I look for in a 300 watt led grow light to stick with the best one?
  • Who makes the best 300 watt led grow light?
  • What are the pros and cons of the specific product that has caught my eye?
  • What are the warranty details?
  • Do I trust this particular manufacturer/seller?

No doubt, your questions about the product you’re interested in don’t end there. And that’s nothing but good. If you have extra time for researching under your own steam, then make the most of it.

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If you don’t, then you can always trust our reviews. Read on for more info on how to succeed in investigating the product you like, without any extra assistance.

Read 300 Watt Led Grow Light Reviews Conduct Your Own Analysis

If you’re a responsible buyer and you don’t like wasting your money on worthless stuff, you tend to invest your time and effort in conducting your own research on the product you’re interested in prior to making a purchase.

You research customer testimonials, Google product information, evaluate the benefits and drawbacks of the item(s) you fancy, while taking their more affordable alternatives into consideration.

When learning as much as you can about the product you want to buy, you will want to focus on the most reliable sources of information. Here are a few tips on getting the most trusted details about the item(s) you’re currently shopping for:

  • read a lot of reviews;
  • compare 300 watt led grow light reviews;
  • analyze those reviews and bear in mind that some of them might not be as independent (read as trustworthy) as they sound;
  • watch video reviews featuring the product you’re focused on purchasing, see it in action, do your best to make your
  • own conclusions whenever possible.

How We Rate Each 300 Watt Led Grow Light

Now, if you have no time (or lack in-depth expert knowledge) for researching all the technical details and customer rating info about the item(s) you’re looking to buy, feel free to turn to our assistance. We analyze each product based on multiple expert criteria prior to sharing our experience-backed opinion on it.

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So, when preparing our reviews, we focus on the following major factors:

  • 300 watt led grow light brand’s reliability and reputation;
  • the features and specs of a product;
  • overall product quality and durability;
  • the product’s benefits and drawbacks;
  • other customer reviews and ratings;
  • video reviews and maintenance specifics.

You can always trust our product reviews, as we only publish them after profound and extensive testing sessions. We aim to be as objective as possible, for we appreciate our reputation and want to be the best in our field, helping our readers make the right choice.

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When it comes to testing and reviewing a variety of products, our algorithms are analyzing thousands of customer reviews each second to find real bestsellers and the highest quality products.

We update our reviews on a regular basis, for we want you to get the most comprehensive and current details out there.

All in all, how we test each 300 watt led grow light and work up our 300 watt led grow light comparison analyses is always about honesty, integrity, independence, and maximum objectivity.

If you have any comments, questions, or suggestions regarding our reviews, you’re welcome to contact us with them ASAP. We value your feedback greatly.

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