Best 300 Watt Led Grow Light | Reviews & Recommendations

Truly finding the 300 watt led grow light is only effective if you can get your hands on some options, which is exactly what we did.

After researching many products, we shaved the list down to the top 10 options today by researching design, capability, durability, features, price, and overall build quality.

We researched hours on these products and compared them to one another to see which one is the best for every need. Read this 300 watt led grow light article with an extensive buying guide if you're interested in buying or learning about these 300 watt led grow light.

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1 VIPARSPECTRA 300W LED Grow Light with Daisy Chain Function, Full Spectrum Plant Growing Lights for Indoor Plants Veg and Flower Actual Power 130 Watt

VIPARSPECTRA 300W LED Grow Light with Daisy Chain Function, Full Spectrum Plant Growing Lights for...

9.4
2 LED Grow Light, Gerylove 300W Grow Light with Daisy Chain Temperature Hygrometer Dimmable Full Spectrum Grow Lights for Indoor Plants Veg Flower Growing Lamps Board 3x3 ft Coverage

LED Grow Light, Gerylove 300W Grow Light with Daisy Chain Temperature Hygrometer Dimmable Full...

9.6
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

LED Grow Light Indoor Plants - 300W 420LED Plant Light with 63" Extendable Tripod Stand,Dual...

9.2
4 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 Lights,300W Led Grow Light for Indoor Plants with 4 Dimmable Levels 3 Modes Timing...

9.2
5 SAMPHON Led Grow Light 3x3ft 300W Dimmable Full Spectrum Grow Lights 1116Pcs LEDs Growing Lamp for Indoor Plants Daisy Chain Greenhouse Veg Bloom Hydroponic

SAMPHON Led Grow Light 3x3ft 300W Dimmable Full Spectrum Grow Lights 1116Pcs LEDs Growing Lamp for...

9.6
6 2022 Upgraded MARS HYDRO FC-E3000 300Watt LED Grow Light 3X3ft UV IR Full Spectrum Grow Light Bar with 1184pcs Diodes, Dimmable & Detachable Grow Lampe for Veg Bloom Flower, Achieve 2.8 umol/J

2022 Upgraded MARS HYDRO FC-E3000 300Watt LED Grow Light 3X3ft UV IR Full Spectrum Grow Light Bar...

9.2
7 Waterproof LED COB Grow Light 300W, WY CN Premium Small Grow Light, Full Spectrum Grow Lights for Indoor & Outdoor Plants, Flowers, Vegetables, Succulent Plants, seedings (Pink))

Waterproof LED COB Grow Light 300W, WY CN Premium Small Grow Light, Full Spectrum Grow Lights for...

9.6
8 Grow Lights for Indoor Plants, Full Spectrum 420 LED Plant Lights for Seed Starting, 300W Plant Growing Lamp, Auto On/Off Timer 4/8/12 H Auto Cycles, 9 Dimmable Levels, Adjustable Gooseneck

Grow Lights for Indoor Plants, Full Spectrum 420 LED Plant Lights for Seed Starting, 300W Plant...

9.2
9 VIVOSUN VS3000 LED Grow Light with Samsung LM301 Diodes & Daisy Chain Driver Dimmable Lights Sunlike Full Spectrum for Indoor Plants Seedling Veg and Bloom Plant Growing Lamps for 3x3/4x4 Grow Tent

VIVOSUN VS3000 LED Grow Light with Samsung LM301 Diodes & Daisy Chain Driver Dimmable Lights Sunlike...

9.6
10 HEISENS LED Grow Light, 300W Full Spectrum Plant Grow Lamp for Indoor Plants, Upgrated Version, IP65, Energy Saving for Veg Flower Greenhouse Indoor Plants

HEISENS LED Grow Light, 300W Full Spectrum Plant Grow Lamp for Indoor Plants, Upgrated Version,...

9.7

List of best 300 watt led grow light  Reviews

SaleBestseller No. 1

VIPARSPECTRA 300W LED Grow Light with Daisy Chain Function, Full Spectrum Plant Growing Lights for Indoor Plants Veg and Flower Actual Power 130 Watt

  • 【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

LED Grow Light, Gerylove 300W Grow Light with Daisy Chain Temperature Hygrometer Dimmable Full Spectrum Grow Lights for Indoor Plants Veg Flower Growing Lamps Board 3x3 ft Coverage

  • 【Full Spectrum】: New Upgraded led grow light should provide the proper spectrum of light for photosynthesis, which is key to plant growth. Excellent full-spectrum- white, blue, red, where it speeds up flowering time and boosts yields. Turn your seeds into your own supply. The 395nm UV light can make your plants healthy.
  • 【Energy-saving Technology】: Equipped with Newest SMD LED technology to provide the highest PAR/LUMEN output, designed to replace traditional HPS; Our LED Plants Growing lamp can assure a 30% more return than the old HPS/MH lights and saves up to 70% energy than other led grow lights.
  • 【Advanced Cooling System】: LED grow light is made of all metal materials, multiple high-speed mute fans and upgraded aluminum radiators enable the light bulb to work at 50°F to 60°F which is lower than other lamps, without using a fan to dissipate heat so that it can work quietly indoors.
  • 【IP67 waterproof and dimming design】: Our LED grow light adopts fine craftsmanship to make the product reach IP67 level waterproof and dustproof, and it does not affect the normal operation of the plant growth lamp when watering the plants. And the grow light has a dimming knob. Multi-light Connection with unified dimming is especially beneficial for a large area of indoor growing and commercial planting.
  • 【Daisy Chain Available】: The coverage area of these plant lights is 3x 3ft, Designed with a daisy chain socket at the back of the product in order to supplement light energy to more plants and save socket resources. Perfect for simplifying growing operations and management, and creating an ideal indoor growing environment!
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

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 Lights 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 Lights】 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. 5

SAMPHON Led Grow Light 3x3ft 300W Dimmable Full Spectrum Grow Lights 1116Pcs LEDs Growing Lamp for Indoor Plants Daisy Chain Greenhouse Veg Bloom Hydroponic

  • FULL SPECTRUM LED GROW LIGHT:Fits for all kinds of indoor plants and all growth stages.Consists of 3000K, 5000K and 660nm,efficacy is up to µmol/J.1080Pcs SMD LEDs and 36pcs osram red diodes,only consuming 300W. Effectively extend and scientifically control the sun-like light required by your plants from seedling to blooming.
  • HIGH EFFICIENCY & LOW ENERGY CONSUMPTION:Samphon 300W led grow lights is ideal for 4 x 4 ft vegetative area or 3 x 3 ft flowering area,4-bar degisn for more even and complete canopy coverage. PPF up to 810 µmol/s,Most of the light energy can be absorbed by plants.Increase yield and crop quality and save electricity bills.
  • DAISY CHAIN DIMMABLE GROW LAMP:The dimmer knob can adjust the brightness of 40%/60%/80%/100%.For commercial grow use,allow 50PCs lights connected together.Adjust the light intensity and timing with the controller(Controller is not included).Fits for grow tents,house garden,herb garden, hydroponic plant,pot culture,flower exhibition,greenhouse cultivation,pipeline cultivation and so on.
  • PROFESSIONAL COOLING SYSTEM:The grow lights with thicken aluminum heat sink,gas reflow design,providing better heat dissipation and reducing waste of heat energy.Sufficient cooling area for longer service life,180° reverse folding design,flat unfold,Built-in power supply,simple and clean,plug and play,easy to install.
  • SAMPHON LED GROW LIGHTS PACKAGE&WARRANTY: 3 years warranty,more than 500000 hours lifespan.Contains 300W full spectrum grow light,Power Cord,Adapter,RJ Wire,Hanging Strings,Users Manual.Life-time technical supports,If you have any questions, just feel free to contact with us.
Bestseller No. 6

2022 Upgraded MARS HYDRO FC-E3000 300Watt LED Grow Light 3X3ft UV IR Full Spectrum Grow Light Bar with 1184pcs Diodes, Dimmable & Detachable Grow Lampe for Veg Bloom Flower, Achieve 2.8 umol/J

  • 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!!
SaleBestseller No. 7

Waterproof LED COB Grow Light 300W, WY CN Premium Small Grow Light, Full Spectrum Grow Lights for Indoor & Outdoor Plants, Flowers, Vegetables, Succulent Plants, seedings (Pink))

  • [Best cob grow light for indoor/outdoor plants] Adopt 60°optical lens for offering more uniform and stronger light than other small grow lights, good performance for indoor and outdoor plants growing.
  • [Durable cob grow light] A high-speed mute fan+upgrade rediator constructed powerful cooling system for ensuring grow lamp works at 50°F-60°F,in a low temperature,can prolong the lighting time lifetime,you can save mush cost for changing light and your loved plants also will be happier.
  • [Energy-effecient full spectrum led cob grow light] It can be replaced traditional 300W HPS/MH grow light, only consuming 50W, help you save much money on electricity bill ,bang for your buck. Suitable as a gift for Christmas, Thanksgiving, Mother's Day.!.
  • [Widely usage small led cob grow light] This sunlike grow light can be used for both hydroponics and indoor plants in soil,mainly used for small plants,mirco-greens, greenhouse, plants shelvies.omdppr gardem. grow tent.
  • [Professional costomer service] We are fully confidence in our grow lights, we provide a 90-day money-back guarantee and a 2-year warranty. If you have any questions, you are welcome to contact us at any time. We will provide you professional service within 24 hours!
Bestseller No. 8

Grow Lights for Indoor Plants, Full Spectrum 420 LED Plant Lights for Seed Starting, 300W Plant Growing Lamp, Auto On/Off Timer 4/8/12 H Auto Cycles, 9 Dimmable Levels, Adjustable Gooseneck

  • 【EFFICIENT ORANGE & BLUE & RED/BLUE SPECTRUM】Our plant light specially designed for plant growth. Orange light light not only helps bloom and bear fruit better, but grows color and seeding better, blue light helps stems and leaves, and mixed helps plants photosynthesis.
  • 【HIGHLY EFFICIENT FULL SPECTRUM】Grow lights for indoor plants, Four-Head Double-row designs, the whole lamp is composed of 420 LED high-brightness lamp beads.Most suitable for planting solutions, gardening, greenhouses, home balcony sowing/seedling/breeding, flower exhibitions, potted plants, especially when the plants need extra light on rainy days, snow, indoor darkness, etc.
  • 【AUTO TURN ON/OFF & 3 CYCLE TIMEING MODES 】There is a Timer function where you can set when and how long indoor plant lights will automatically go on and off. 4, 8, and 12 hour automatic cycles. (Note: Auto cycle needs to maintain power!)Even you're on the travel, these grow light strip will still take good care of your plants every day!
  • 【STURDY & FLEXIBLE】Equipped with stable, durable tripod stand and can be adjusted from 15” to 63”, suitable for more different size house plants. and the gooseneck are flexible but stiff enough to hold the weight of the lights.Ideal for Small or Large Indoor Plants, Herb Gardens.The light offers your plants sunlike lights, good to grow flowers, seeds, succulents, peppers and so on.
  • 【MULTI-FUNCTION】9 levels of dimming which helps you to manage the level of heat that your plants receive. The led grow light can be control which of the grow lamp come on,so you can turn on 1, 2, 3, or all 4 lights.Free to choose the most suitable brightness for our plant growth. Plants grow about 5 times faster than natural.
Bestseller No. 9

VIVOSUN VS3000 LED Grow Light with Samsung LM301 Diodes & Daisy Chain Driver Dimmable Lights Sunlike Full Spectrum for Indoor Plants Seedling Veg and Bloom Plant Growing Lamps for 3x3/4x4 Grow Tent

  • High Efficiency & Lower Cost: This VS3000 LED grow light uses premium Samsung LM301 diodes with high-efficiency (2.9μmol/J); The energy consumption is only 300 watts; It can cover 4 x 4 ft. area (5 x 5 ft. max)
  • Dimmable Ballast: This LED plant lamp has a dimming knob with 4 levels that can be used from sprouting to flowering; ​Designed with the daisy chain function (EXT) that allows you to connect multiple lights with 1 socket
  • Full-spectrum Sunlike Lighting: These LEDs deliver optimal light-spectrum coverage (380nm-780nm, 660nm, 730nm, 3000K, 5000K), offering more power for your blooms and maximum PAR output at various distances
  • No Noise & Low Heat: This grow light equipped with high-quality heatsink and ventilation holes, so it can prevents burning or damage to your plants; With no fan design, it can provide a quiet working environment
  • Safe to Use: The IP65 rating surface can meet your demand in different indoor planting environments; Comes with grow glasses, a pair of VIVOSUN US-patented rope hangers & 5-year after-sales warranty service
Bestseller No. 10

HEISENS LED Grow Light, 300W Full Spectrum Plant Grow Lamp for Indoor Plants, Upgrated Version, IP65, Energy Saving for Veg Flower Greenhouse Indoor Plants

  • 【Full Spectrum】Mported LED light source with highcolor rendering, color more realistic, restore natural color, brighter, long life.Using upgrated diffusion plate, light transmit as high as 95%, anti-fog anti glare, the light is soft and comfortable, create soft atmosphere.
  • 【Wide Irradiation Range】Designed with adjustable 180° U-shaped bracket, easy to light up and down to position, no need other tools, safe and reliable
  • 【Efficient Heat Dissipation】Heat sink design promotes quick heat disspation to help prolong LED lifespan
  • 【IP65 Waterproof】The lampshade is waterproof, not afraid of rain. On rainy or snowy days, there is no need to worry about being damaged by water ingress.
  • 【Wide Uses】Can be adjusted for indoor plants、potted plants、greenhouse vegetables at different growth stages, helping to absorb energy from LED lights and promoting growth.
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