Best 300 Watt Led Grow Light in 2022 [*Top Picks*]

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

8049 Reviews Scanned

  • VIPARSPECTRA 300W LED Grow Light with Daisy Chain Function, Full Spectrum Plant Growing Lights for Indoor Plants Veg and Flower
    Bestseller #1
    VIPARSPECTRA 300W LED Grow Light with Daisy Chain Function, Full Spectrum Plant Growing Lights for Indoor Plants Veg and Flower (671)
      【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.
  • 2022 Newest Spider Farmer SE3000 Bar LED Grow Lights 300W with 896Pcs Samsung LM301B Diodes MeanWell Driver Detachable 3x3ft Full Spectrum UV IR Dimmable Growing Lamp for Indoor Plants
    Bestseller #1
    2022 Newest Spider Farmer SE3000 Bar LED Grow Lights 300W with 896Pcs Samsung LM301B Diodes MeanWell Driver Detachable 3x3ft Full Spectrum UV IR Dimmable Growing Lamp for Indoor Plants (611)
      【MAXIMUM UNIFORMITY & EFFICIENCY】: Unique designed 4 extended LED bars to edges which can provide more even canopy coverage, especially to the outer edges cultivation areas. With 896pcs SAMSUNG LM301B diodes, SE3000 Led grow lights draw 300 watts with 822.82umol/s, achieving an impressive PPE of 2.75 umol/J, coverage for 3'x3′ of high-yielding full-cycle growth. 【UPGRADED FULL SPECTRUM & DIMMABLE】: Full spectrum (380-410nm, 660-665nm, 730nm,3200-4200K,4800-5000K) is perfect for veg to bloom, to adapt to each phase of the plant cycle. The dimming knob is ideal for growers to adjust the light intensity according to different growing stages. 【PASSIVELY COOLED & DETACHABLE DRIVER】: Bar light design and aluminium material on the back contribute to better airflow and great heat dissipation. SE3000 plant growing light comes with a detachable driver and long power cord, thereby reducing ambient heat in your growing space for extended lifespan. With the waterproof circuit board, worry free of the moist environment. Easy installation. 【DAISY-CHAIN DIMMING】: The daisy-chain function allows you to connect up to 30 SE3000 LED growing lights - dimming multiple lights simultaneously. Widely applied in the commercial growing (horizontal and vertical), climate rooms, house garden, home grows (grow box and tents), greenhouse cultivation, pipeline cultivation, hydroponics. 【VALUE FOR MONEY】: SPIDER FARMER LED Plant Lights are often copied but will never have our quality or commitment, we provides 5 years of after-service of local maintenance center(US/CA/UK/DE). Make sure you purchase authentic Spider Farmer grow lights, really can give you need from a high-quality grow lights – at a price that is affordable. For any questions, feel free to e-mail us and we will help you resolve it. Quality backed by our ironclad!!!
  • 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
    Bestseller #1
    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 (674)
      HIGH-EFFICIENCY LED GROW LIGHT: MARS HYDRO FC-E3000 grow light with 1184pcs BridgeLux Diodes, market-leading 2.8 µmol/J PPE, Max 2.5g yield/watt, 300 Watt with smaller footprint for better crop quality, more cost-effective. 3x3ft for personal grow, 2.5x2.5ft for commercial grow. INNOVATIVE PRECISE UNIFORM LIGHTING: Built-in removable bars interval & dimmability enable the exact dynamic PPFD control over each of plant growing stages, FC-E3000 easy-to-install detachable bars deliver uniform adjustable PPFD levels throughout plant canopy, best for more uniform Density Buds. DIMMABLE COMMERCIAL GROW LIGHT: Easy dimming & daisy chain max up to 20 lights, IP65 Waterproof, master light easily controlled, making it a high performance commercial grow light for enormous yields. Also perfectly suit full-cycle hydroponic, soil, grow tent/room growing. SUPERIOR HEAT DISSIPATION: Detachable power supply can be mounted remotely on the side of a grow tent/rack or on adjacent wall to remove heat from grow space; real Aluminum heatsink & 4 slim profile passive cooled bars (THINNER & LARGER surface) creat less heat, drop 50% in electricity bill than HID lights! FULL SPECTRUM UV IR GROW LIGHT: With Yield Max spectrum (660nm Osram enhanced Deep Red,2800k-5000knm,730-740nm IR,380-410nm UV LEDs), innovative design FC-E3000 LED grow lamp is designed for commercial & home horticulture. Trusted 5 years warranty, any question, just email us,100% Satisfactory Solution guaranteed!!
  • 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
    Bestseller #1
    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 (15)
      【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.
  • 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
    Bestseller #1
    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 (674)
      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 30 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.
  • 2022 Upgraded MARS HYDRO FC3000 300Watt LED Grow Lights for Indoor Plants Bar with 896Pcs Diodes Samsung LM301B & UV IR for 3x3ft, Full Spectrum Daisy Chain Dimmable Growing Lamp, Achieve 2.85 umol/J
    Bestseller #1
    2022 Upgraded MARS HYDRO FC3000 300Watt LED Grow Lights for Indoor Plants Bar with 896Pcs Diodes Samsung LM301B & UV IR for 3x3ft, Full Spectrum Daisy Chain Dimmable Growing Lamp, Achieve 2.85 umol/J (674)
      【MAXIMIZE YIELDS & CROP QUALITY】: MARS HYDRO FC 3000 grow light with -Samsung LM301B & Osram 660nm Diodes and MeanWell Driver, boast the market-leading efficiency 2.85 µmol/J, Max 3g yield per wattage with 30% higher Average PPFD, get 50% greater yield & quality compared with the old lights! Only consumes 300Watt, perfect for 3x3ft grow tent/ grow room. 【DIMMABLE DAISY CHAIN】 : Rotate dimming button easily to adjust the brightness suit for the plants growth states. The daisy-chain function allows you to connect up to 30 FC 3000 LED growing lights - dimming multiple lights simultaneously. Widely applied in the commercial growing horizontal and vertical, greenhouse cultivation, pipeline cultivation, hydroponics. 【GROW LIGHT FULL SPECTRUM】: High-intensity spectrum with enhanced red(3200-4200K,4800-5000k, 650-665nm) is perfect for veg to bloom, to adapt to each phase of the plant cycle. The dimming knob is ideal for growers to adjust the light intensity according to different growing stages. 【FREE INSTALLATION】:Open and use, 4 passive-cooled bars,aluminum heat-sink,fanless zero noise design,offers even & broad canopy coverage,maximizes grow space, best high returns led grow light for 3x3ft grow room of high-yielding full-cycle growth. 【5 WARRANTY SERVICE】: US local repair center makes your purchase worry-free, any problem or question, feel free to contact our customer service first.
  • Bloom Plus Latest XP3000 LED Grow Light with Samsung LM301B Diodes 4x4 ft Coverage Dimmable Full Spectrum 300W Grow Light for Indoor Plants Veg and Bloom Hydroponic Growing Lamps with 652pcs LEDs
    Bestseller #1
    Bloom Plus Latest XP3000 LED Grow Light with Samsung LM301B Diodes 4x4 ft Coverage Dimmable Full Spectrum 300W Grow Light for Indoor Plants Veg and Bloom Hydroponic Growing Lamps with 652pcs LEDs (142)
      TOP PERFORMANCE & HIGH EFFICACY: Bloom Plus upgraded XP3000 LED growing light use the latest high-efficiency (2.7 umol/J) LED plant light technology - Samsung LM301H Diodes for extremely high output, increase the yield of crops and save operation cost, generates more usable lighting per watt, and provides better light canopy penetration. TOP PERFORMANCE & HIGH EFFICACY: Bloom Plus upgraded XP3000 LED growing light use the latest high-efficiency (2.7 umol/J) LED plant light technology - Samsung LM301H Diodes for extremely high output, increase the yield of crops and save operation cost, generates more usable lighting per watt, and provides better light canopy penetration. ADVANCED FULL SPECTURM & DIMMABLE KNOB: Delivering optimal light-spectrum coverage - 650-665nm Red Lights ,2800-3200K warm lights, 4800-5000K white lights ,730-740nm IR lights, best for all stages growing from seed to flower, increase yield & crop quality‎. XP3000 LED indoor growing lamp has a dimming knob that makes it adjustable to different growing periods for your plants; It can adapt to the growth needs of different plants in different periods. SILENT OPERATION & SOLID CONSTRUCTION: Fanless LED grow design will make your growing life quiet. Large areas of solid aluminum heat sinks help you to achieve the ideal cooling system. Adopts high performance power supply driver to achieve high PAR output, longer lifespan to speed up plant's grow processes and boost yields while saving you on your energy bill. 100% SATISFACTION GUARANTEED---The Bloom Plus LED Grow Lights offers a 30-day money-back guarantee and a trusted 3 years warranty. Professional U.S. local after-sales service provides you with the most convenient shopping experience. Make sure you purchase authentic Bloom Plus grow lights. If any questions, please feel free to contact us by email.
  • Electric Sky 300 V3, Wideband LED Grow Light, High Performance, Silent Cooling, Plant-Tuned Full Spectrum, Rapid Veg Growth and High Flower Yield, up to 3'x6' Grow Area
    Bestseller #1
    Electric Sky 300 V3, Wideband LED Grow Light, High Performance, Silent Cooling, Plant-Tuned Full Spectrum, Rapid Veg Growth and High Flower Yield, up to 3'x6' Grow Area (14)
      READY TO GROW BIGGER AND FASTER? The Electric Sky’s WIDE BAND FULL SPECTRUM gives plants the perfect PAR across your ENTIRE grow area with spectacular canopy penetration. The Electric Sky not only shows plants in true color for your eyes, but is also scientifically tuned for rapid plant growth. MAXIMIZE YOUR GROW SPACE with near-field lighting technology. Special dual-direction linear optics focus light away from your eyes and onto your plants. The larger, distributed LED footprint gets our Electric Sky 12-15” from your plant canopy so you can grow HIGHER and WIDER in tight spaces without burning or dead zones. GROW ANYWHERE with silent cooling and operation. NO FANS to break down! Ultra-high efficiency means more growing power so you can grow bigger plants with less heat to deal with and energy costs. EASY TO USE - just plug in and grow! Advanced spectrum technology creates a single spectrum with a special color ratio that enhances every stage of vegetative and flower growth across your 2.5’ X 5’ flowering area using only 300 Watts. Full intensity control with included dimmer. CUTTING-EDGE LED TECHNOLOGY gives you up to TWICE the growing power & efficiency with only HALF WATT power usage from the wall vs HPS & other LED systems. Premium QUALITY components & manufacturing certified safe by US Laboratories is something you can see and feel. Discreet shipping and UNCONDITIONAL 90 DAY MONEY BACK GUARANTEE with a full 3 Year Warranty and US-based support, so you can confidently start growing today!
  • Advanced Platinum Series P300 300w 12-band LED Grow Light - DUAL VEG/FLOWER FULL SPECTRUM
    Bestseller #1
    Advanced Platinum Series P300 300w 12-band LED Grow Light - DUAL VEG/FLOWER FULL SPECTRUM (329)
      Platinum LED lights have the HIGHEST PAR/LUMEN OUTPUT PER WATT of any LED grow light! 2x-3x the intensity of any other lights! SUPERIOR 12-band full spectrum from the depths of UV to the heights of IR - The most complete and efficient spectral output available Selectable VEG/FLOWER switches with 2x high speed whisper quiet fans plus ALL NEW upgraded aluminum cooling heat sinks 400w HPS replacement with 4.5ft x 3.8ft coverage at 18" height - PERFECT for compact applications or using multiple units for even coverage COMPLETE 5 YEAR WARRANTY plus our exclusive 90 DAY SATISFACTION OR RETURN GUARANTEE
  • LED Grow Light Indoor Plants - 300W 420LED Plant Light with 63
    Bestseller #1
    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 (213)
      【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
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