Our Best 400 Watt Led Grow Lights [Top 10 Picks]

Are you aware of where to find 400 watt led grow lights? I would appreciate it if you could join us today. The market is filled with many options, making it hard to decide which is best.

This article will help you choose best 400 watt led grow lights much faster. By using this guide, you can find exactly what you’re looking for. You can expect a seamless shopping experience from us!

Our Recommended 10 best 400 watt led grow lights Reviews 2023

Bestseller No. 1
Sonlipo 2022 New SPF4000 LED Grow Light 400W 5x5ft Coverage, Use 1323pcs Samsung Diodes Sunlike Full Spectrum Veg Bloom Switch Growing Lamps for Indoor Plants Seeding Flower Led Plant Light Fixture
  • 【Lower Running Costs & Higher PPFD】Actual power only 400 watts, High PPFD, up to 1784 ¦Ìmol/m2.s. Comparable to a traditional 900W HPS or CMH light. Save up to 60% on your electricity bill. Using 1323pcs of the latest high quality LED technology - Samsung smd + diodes, to provide high PAR output, longer lifetime and better light canopy penetration. SPF4000 grow light perfect for 5x5ft vegetable stage, 4x4ft bloom stage.
  • 【VEG & Double BLOOM Switch】Aaccording to the growth and yield of plants, SONLIPO designed 3 switches, VEG, BLOOM and enhance BLOOM, to facilitate the control of red and blue light spectrum, to make the roots and stalks of plants grow thicker, and prevent them from growing taller in vain. Enhance RED light, can greatly increases the size and number of flowers to maximize the yield of the plant, maximum 2.9 g/w.
  • 【Full Spectrum Grow Light】Infinitely close to natural sunlight, consists of 660nm Red light, IR 740nm, and 3000K, 4000K, 5000K, 6000K light spectrum. IR is dimmer than other red diodes. 3000K providing more reddish light and the 6000K providing more blueish. The 660nm red and IR light is especially useful during bloom, where it speeds up flowering time and boost yields. Uniformly across the surface and deep into the roots and bottom of canopy for consistent, highest quality flowers.
  • 【Well Made, Excellent Heat Dissipation】Solid structure, No Fan Noise Free. The housing is made of aviation heat sink aluminum, thick and strong, and provides excellent heat dissipation. Cable has protective cover, user-friendly packaging. Built-in short-circuit protection device automatically protects your lights from damage, you can easily save money without purchasing lights frequently.
  • 【100% Warranty & Easy to use】Plug and Play, One-touch switch sets the light spectrum for your plant to suit it. Product quality and friendly customer service are always our primary objectives. We offer a 90-day new replacement or full refund, 12 months free warranty, and professional guidance to help your horticultural grow and grow craft better.
Bestseller No. 2
Bloom Plus Latest XP4000 LED Grow Light with Samsung LM301B Diodes 400W Upgraded Dimmable 5x5 ft Coverage Full Spectrum Plant Grow Light for Indoor Plants Seeding Veg Bloom Hydroponic Growing Lamps
  • TOP PERFORMANCE & HIGH EFFICACY: Bloom Plus upgraded XP4000 LED growing light use the latest high-efficiency (2.7 umol/J) LED plant light technology - Samsung LM301B 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.
  • LESS ENERGY CONSUMPTION: Comparable to traditional 800W HPS/MH, XP4000 Plant Grow Lamp consumes only 400Watt with 832 pcs LEDs! Get 50% higher yield harvest and save costs. Perfect for core coverage 5x5 ft. Adjust the height and brightness properly to meet your plants desired level for optimal growth.
  • 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. XP4000 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.
Bestseller No. 3
SZHLUX 4000W LED Grow Light 4×4ft Coverage Dual Switch Full Spectrum Grow Lamp for Indoor Plants, Sunlight Plant Light 864 LEDs for Hydroponic Seedling Veg and Bloom Greenhouse Growing Light Fixtures
  • 【High Efficiency and Low Energy Consumption】- SZHLUX LED Grow Lights utilize the latest in high yielding LEDs technology, high Energy Efficiency with 2.9 Umol/J, delivers powerful light output and uniform canopy penetration to resulting maximum higher yields. Consuming only 400W with 864 LEDS! It saves up to 50% energy than other quantum board led grow lights. The effective footprint is 4 x 4 ft.
  • 【Trapezoid and Double-Switch Design】- Trapezoid-Shape and SanAn 1W LEDS for larger luminous area than T5 and T8 led plant light. Double switches let you can control 3 or 6 lights separately to adjust the brightness of the light, which is more convenient to operate than the ordinary dimmable remote control, prevents the inefficient plant growth caused by improper adjustment.
  • 【Sunlight Full Spectrum】- Infinite close to sunlight wave for plants, over 95% light energy can be absorbed by plants. White, blue, red and IR (3000K, 5000K, 660nm and IR 730nm). 3000K providing more reddish light and the 5000K providing more blueish. Especially 5000k blue light promotes seedling growth, the 660nm red and 730nm IR light is most useful for plant photosynthesis, promote plant flowering and fruiting, increase yield and crop quality.
  • 【Noise-Free and Amazing Heat Dissipation】- Professional fanless design will make your growing life easy and quiet, quickly heat dispersing aluminum shell and reflector reducing light lost to aisles and walls, increase the light intensity up to 20%, allowing your plants receive more energy and without burning for maximum lighting headroom.
  • 【After-Sale Service】- 2 years warranty plus 30 days Money Back Guarantee for any products from our official channel, if you need to change the light beads or part of the light, please feel free to contact us based on our reliable customer service.
Bestseller No. 4
VIVOSUN VS4000 LED Grow Light with Samsung LM301 Diodes &Brand Driver Dimmable Lights Sunlike Full Spectrum with Grow Room Glasses for Seedling Veg & Bloom Plant Grow Lamp for 4x4/5x5 Grow Tent
  • Low Costs & High Efficiency: VIVOSUN VS4000 LED grow light uses Samsung LM301 diodes & brand driver for high energy efficiency with 2.9 μmol/J; Extremely high output but consumes only 400W of electricity
  • Convenient Dimmable Lights: This LED grow light has a dimming knob & ballast, so it adapts to different plant growth stages by adjusting its output from 40% to 100%
  • Sunlike Full-Spectrum Light: These VS4000 LEDs deliver the optimal full-spectrum coverage and power needed by your plants at all growth stages, supporting efficient photosynthesis for plants
  • Low Noise & Low Heat: VS4000 LED grow lights have power supply and ventilation holes; No fans needed means low noise; Ambient heat around this light is very low, so there is no burns or damage to your plants
  • Warranty: Super durable and reusable; Comes with grow glasses, a pair of VIVOSUN US-patented rope hangers & 5-year after-sales service
SaleBestseller No. 5
SANSI Grow Light Bulb with COC Technology, PPF 65.6 umol/s LED Full Spectrum, 36W Grow Lamp (400 Watt Equivalent) with Optical Lens for High PPFD, Energy Saving Plant Lights for Seeding and Growing
  • 4000K DAYLIGHT: Imitate the solar spectrum, customize a more ideal full life cycle full spectrum supplementary light program, covering the entire visible spectrum of 400nm-780nm; Color rendering index Ra is close to 100, infinitely close to natural light, suitable for every cycle of plant growth, effectively promotes plant growth, and improves crop yield and quality.
  • SECONDARY OPTICAL DESIGN: PPF: 65.6 umol/s, PPFD: 265.58 μmol/s/㎡ @ 1ft. Through the lens for secondary scientific light distribution, improve light utilization, give plants more supplementary light, and improve light bulb lifespan to 25,000 hours.
  • PATENTED COC TECHNOLOGY: Chip on Ceramic, SANSI's patented technology replaces the traditional Mcpcb aluminum substrate with a non-conductive ceramic heat sink, and directly solder the LED chip on the ceramic heat sink, effectively reducing the system thermal resistance between the LED PN junction and the surface of the heat sink, resulting in faster heat conduction and higher product reliability, makes the SANSI bulb has higher light efficiency.
  • SAFE & RELIABLE: The lamp body is made of special ceramic material, and the flame retardant grade reaches V0; the reinforced insulation structure design, no risk of electric shock, is safer; the whole shell material reaches the WF2 anti-corrosion grade, which is more reliable and durable; low IR, less heat radiation, avoiding close Distance exposure burns plants.
  • GUARANTEES: ETL listed & CE certification, quality and safety verified, 5 years warranty.
Bestseller No. 6
Engilen Grow Lights for Indoor Plants, 400W Full Spectrumg Grow Light ,3 Types Dimmable, Remote Control,Suitable for Indoor Plants,Micro Greens,Clones,Succulents,Seedlings.
  • 【Energy efficient 】: 60w actual power replace 400W HPS or HID grow light with only 60W consumption, saving your electric bill,Real working environment test, wet environment, it can work normally even in a water tank, improving the safety factor
  • 【Dimming function】: Contains three lighting modes: red + warm white, purple + white, red + purple + white + warm white, Providing the most suitable and most needed light for each growth stage of the plant.
  • 【Cycle timing switch design】: The plant light has a cycle timing function4h/8h/12h. 4 kinds of brightness adjustment, adjust the full spectrum grow light brightness according to your plant needs.
  • 【Indoor grow light】: Engilen full spectrum led grow light, It emits all the wavelengths from 380nm to 800nm- just like natural sunlight. The plant lamp emits growth light through the lamp bead chip, which completely imitates natural light, include 60 warm white LED、60 white LED、20 red LED、4 purple LED.
  • 【Widely Used and easy install】:Widely apply to family balcony seeding/breeding, gardening, flowering, potted plants, grow tent,outdoor garden especially tall and large plants.The lamp was rather straightforward to put together, it has a handle as well as metal hanging threads that connect to a clip, allowing it to be hung almost anyplace with relative ease.
Bestseller No. 7
UNIT FARM 400W LED Grow Light, UF4000 Full Spectrum LED Growing Lights for Indoor Plant, Detached Driver, Upgraded Diodes Array for Evenly Light Output
  • 【One Panel to Rule The All】 Mixed 3000K, 5000K, 660nm Red, and final spectrum is 3500K which is perfect for full-cycle growth. Plus special IR & UV to stimulate growth. Better diodes arrangement offer the more evenly output, Work as Well as bar Light. Let every leaf get enough light, Can increase the yield by 20%.
  • 【High-Efficiency & Reliable Plant Growing Lamp】 consume 400watts. Equal to 700Watts blurple light or HPS. Using 100,000 hours long lifespan OSRAM diodes. CRI up to 90, 10 times higher than blurple light, 30% higher than cheap SMD LED. Easier to observe the health of plants.
  • 【Flexible & Thoughtful Design】 Removable driver total is 13FT(4M) length, you can put the driver outside your tent to keep the ambient temperature cool in summer, or keep inside keep warm in winter. Ultra-thin yet strong load-bearing capacity, you can set an inline fan on it, make more space for your plants to grow
  • 【Professional after-sales team】Worry-free 12-month warranty, Repair center in the USA. You also could message us via Amazon message or ask a question via the "have a question" part. We will reply in time. Have connections with a large number of experienced growers On social media, always could provide you professional solutions.
  • 【Tips for Coverage & Hanging】 For tomato, herb, or pepper in veg, at 30''-34'' in 5x5FT; For flowering, at 24''-26'' in 4x4FT. For 3x3FT room in high levels of CO₂, please set it at 22''-24''. That would level up the yield.
Bestseller No. 8
SUNRAISE LED Grow Light Q4000 4x6ft 5x5ft 6x6ft Dimmable LED Grow Lights with IR, Upgraded Full Spectrum LED Growing Lamp with 1296Pcs LEDs Commercial Grow Lights Size 44.88" x 22.6" 400w
  • 【BIG SIZE BIG FOOTPRINT】 SUNRAISE Q4000 with size 44.88"x22.65", comparable to traditional 800W HPS/MH while consuming only 400W! Perfect for 6x4ft tent. Vegetative coverage 6x4 ft at 20”and flowering coverage 6x3ft at 12". Please Remember to properly adjust the height and brightness accordingly to your plants desired level for optimal growth.
  • 【SUNLIKE FULL SPECTRUM GROW LIGHT】Full spectrum 3000K, 6000K, Red and IR, suitable for all stages of indoor growth providing sun like quality spectrums for rapid plant response from seed to flower. SUNRAISE use the newest SMD LED Technology to provide a high PAR output, and high energy efficiency.
  • 【CUSTOMIZED DIMMING DESIGN】SUNRAISE Q4000 LED grow utilize both a dimmer function as well as a power switch. The dimmer knob is featured to manipulate the brightness level of the light, allowing flexibility to obtain perfect growth performance for each growing phase.
  • 【AMAZING HEAT DISSIPATION】Q4000 LED grow lamp with 8 piece aluminum heat-sink. No fans no noise, we used the highest quality driver for unmatched performance in heat dissipation & lifespan. Saves 50% more energy than other old grow lights!
  • 【What you get】1x Q4000 led grow light, 2x stainless steel hanger hook, 2x adjustable ratchet rope hanger, 1x 6.7ft power cord, 1x screwdriver, 24x screws, and welcome guide. We offer worry-free 36-month USA local warranty and professional guidance to help you and your plants grow to their maximum potential.
Bestseller No. 9
BLOOM PLUS LED Grow Light BP 4000W 5x5ft Coverage Sunlike Full Spectrum LED Grow Light Use with 1292packs Samsung Diodes(Includes IR) Dimmable Plant Grow Lamp for Indoor Plants
  • LOWER COSTS & HIGHER-QUALITY YIELDS---Using the Newest high-yield LED technology-1292 pcs Samsung 2835 diodes. So BP4000 LED Grow Lights achieves a high energy efficiency of 2.7 umol/J and improves the light transmittance. The LED Growing Light consumes only 400W of power, which is 50% less than the operating power of other 800W HID/Blurple/HPS lamps, while help gets 50% higher yield harvest. The maximum output is 2.5g/w. Veg Coverage: 6 x 6 ft, Flower: 5 x 5 ft.
  • OPTIMAL FULL-SPECTRUM LIGHTING---The Full Spectrum led grow lamp can provide everything the plants need under light at all stages. The powerful blue light makes the plants grow faster, and IR light is particularly useful during flowering, it can accelerate bloom time and increase yield, fill the flowers with space and obtain an amazing harvest. This can not only reduce buds but also increase yield while saving energy and costs.
  • UNIQUE DESIGN---Plant Grow Lights have a dimmable driver on the back, you can remove the rubber plug and adjust it with a 3mm Phillips screwdriver (adjustment range: 1.5-3.0A). Designed for indoor growers, the full spectrum LED grow lights aim to help individual indoor growers and greenhouse growers to obtain higher yield and better quality within the budget.
  • UNIQUE DESIGN---Plant Grow Lights have a dimmable driver on the back, you can remove the rubber plug and adjust it with a 3mm Phillips screwdriver (adjustment range: 1.5-3.0A). Designed for indoor growers, the BP4000 full spectrum LED grow lights aim to help individual indoor growers and greenhouse growers to obtain higher yield and better quality within the budget.
  • 100% SATISFACTION GUARANTEED---The Bloom Plus LED series 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. If any questions, please feel free to contact us with email.
SaleBestseller No. 10
SUNSHINE FARMRE Grow Light, SF4000 Grow Lights for Indoor Plants, 400Watt Dimmable Daisy Chain LED Grow Lights with Diodes, 2022 Newest Full Spectrum Plant Lights, 5x5 4x4 ft Coverage
  • HIGH EFFICIENCY AND LONGER LIFESPAN: Our grow lights for indoor plants come with Samsung LM301B diodes which is the newest technology of LED lighting, quality assured. Meanwhile, the premium design and quality of this grow light provide high efficiency up to 2.9μmol/J, offering powerful output but with lower energy costs. 888 LEDs and actual power 400 watts, provide high LUMEN output but also save more energy than other LED grow light.
  • DIMMABLE AND FULL SPECTRUM: The dimmable design of this plant light for indoor plants makes the practical uses more flexible, you could change it whenever you need. This grow light is available for all the stages of plant growth because it's a sunlike full spectrum plant light. The 3000K warm white light/5000K cold white light, the 660nm-760nm red and IR light, provide all kinds of the lights needed from the seedlings stage to the bloom stage, this LED grow light works as well as natural lights.
  • MUTE WORKING AND SAFE USE: This plant light for indoor plants is fanless but has the premium heat dissipation performance because of the material. No need to worry about the noise or the possibility about the plants will be damaged due to the full spectrum grow light overheating. The main parts and accessories are certified by related organizations like UL etc. IP65 waterproof of this LED grow light full spectrum could meet more kinds of indoor planting requirements.
  • CONVENIENT FOR MASSIVE PLANTING: This grow light for indoor plants has a daisy chain design that only needs one plug for work, easy to control. And this grow light could offer 5x5ft veg coverage and 4x4ft bloom coverage, minimizing the energy lost and raising the plant yield rate, no matter if it's for personal or commercial needs, this plant grow light will always be a brilliant choice.
  • PREMIUM CUSTOMER SERVICE: Our Sunshine Farmre plant growing lamps come with 3 years warranty, if you have any queries with the LED grow light, please do not hesitate to contact us, we'll reply to you within 24H and offer you a solution. Note: adjusting the grow lights height and light strengths as the plant growth stage needed could maximize the yield rate.

Before You Purchase A 400 watt led grow lights, Are There Any Things To Consider?

It is important to be aware of the following topics before buying 400 watt led grow lightss.

Description Of The Operation

The majority of 400 watt led grow lightss do not require a button to operate.

By using the button of the product, running becomes convenient. Upon releasing the button, the operation will end. You can decide how frequently it runs.

By contrast, a 400 watt led grow lights that doesn’t have a button becomes active. In addition, you can control the number of products displayed and the number of buttons.

It is easier to use methods that are simpler and faster for most users. In the end, there is no right or wrong answer.

Here Is A List Of Things To Consider:

As many 400 watt led grow lightss as possible should be used.

A 400 watt led grow lights that is inexpensive is not as important as one that is quality. Ceramic and stainless steel are commonly used in key words.

A ceramic mechanism, on the other hand, is more prone to losing its taste easily and breaking.

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The strength and weakness of a material can be taken into consideration when selecting it.

A Coarseness Setting Is Available

If you are shopping for a 400 watt led grow lights mill, you will need to consider its fineness or coarseness.

You can make them more interesting by using 400 watt led grow lightss with different coarseness levels.

Capacity Is Available

When it comes to 400 watt led grow lightss, what’s your preferred number? Capacity is still extremely important despite being less critical than some of the others.

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When Selecting 400 watt led grow lightss, What Are The Steps You Follow?

There is still a need for a full 400 watt led grow lights list. Prices and 400 watt led grow lightss vary from one another. Depending on the 400 watt led grow lights you choose, as well as the frequency of use and your budget, you will likely spend more or less.

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400 watt led grow lightss And Phrases Differ From Each Other?

It depends on what you want to achieve when selecting a 400 watt led grow lights type. The small size of 400 watt led grow lightss makes them versatile. It is possible to carry small items in pockets. My pocket did not fit it, despite its size.

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Buying A 400 watt led grow lights, Should I Take Anything Into Consideration?

It is my first time purchasing a 400 watt led grow lights. Should I consider a specific brand? It is also very helpful to know the first 400 watt led grow lights value! Thanks for your kind words!

Consider carefully before buying a 400 watt led grow lights. You should nevertheless do some online research before choosing 400 watt led grow lightss, even though you’re asking here. You can find here a reasonably detailed description of your request.

Is There Something I Should Do After Acquiring A 400 watt led grow lights?

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