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The Best 400W Grow Light of 2022 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best 400W Grow Light of 2022. Check our ranking below.

2,752 (random num) Reviews Scanned

Rank No. #2
FANHAO LED Grow Lights, 400W Full Spectrum Grow Lamp with Remote Control Plant Lights for Indoor Plants, 4/8/12H Timer, 4 Dimmable Levels, 3 Switch Modes for Indoor Plants Veg Bloom
  • FULL SPECTRUM PLANT LIGHT: Equipped with 144 high efficiency LEDs (20 Red + 60 Warm White + 62 Cold White+ 2 Purple), this grow light emits full spectrum light from 380nm up to 800nm, which is professionally designed for indoor houseplants. Similar to the sunlight at noon, this plant light provides high luminous efficacy for more plants, at the same time, saves your electric bill. (Actual 60w power draw replace 400W HPS or HID grow light).
  • IDEAL COOLING SYSTEM & IP65 WATERPROOF: Full coverage 3A+ level aluminum heat sink can lower temperatures 50°F greater than other brands, FANHAO led grow light maintain brightness at 95%+ after 3 years of use.
  • 3 LIGHT MODES & 4 LEVELS DIMMABLE: Contains 3 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. Also, it supports you to adjust the brightness within 0%-100% by operating the controller.
  • DOUBLE CONTROL AND AUTO OFF TIMER FUNCTION: Equipped with line-in controller and RF controller, remote control is more convenient to operate and protect your eyes. There are 4/8/12 lighting time modes to choose from. The grow light automatically turns off every day after setting.
  • LIGHTWEIGHT EASY TO USE & 100% SATISFACTION GUARANTEE: Very smart design indoor grow light has only 1lb, sturdy construction, easy to set up anywhere you like with the upgraded hanging kits. We stand by our products. Return & Refund Guarantee within 1 Year of receipt of shipment if you are not satisfied with our grow lights. No question asked.
Rank No. #3
FECiDA 2025 Upgrade Professional LED Grow Light 400 Watts Actual Power, 3x3 2x4 ft Grow Gent Light for All Growth Stages, Higher Output, Dimming Function Makes Greater Harvest and Saving Money
  • High Output and Plants Love---Max 400 Watts Actual Power can meet your plants in 3x3 or 2x4 ft grow tent all growth stages need, seed starting, seedlings, flowering and fruiting.
  • Ideal Sunlight Full Spectrum---UV-IR Included Sunlight Full Spectrum Friendly for your eyes and plants are happy with it. You'll get the biggest harvest.
  • Stepless Dimming---You can adjust the brightness of the light steplessly from 0-100% for different growth stages, greater harvest, reasonable electricity bill, saving money.
  • Perfect Heat Dissipation---Quiet Build-In Fan design let your lamp not hot and longer lifespan, better air circulation for your plants.
  • 100% Satisfied After-Sale Service---Professional and Reliable LED GROW LIGHT Manufacturer since 2010 ensure you can get great shopping and using experience.
SaleRank No. #4
VIVOSUN VS4000 LED Grow Light with Samsung LM301 Diodes & Brand Driver Dimmable Full Spectrum Sunlike Lights for Seedling Veg & Bloom Plant Lamp for 4x4/5x5 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 25% 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 a pair of Vivosun US-patented rope hangers & 5-year after-sales service
Rank No. #5
Sonlipo 2024 New SPF4000 400W LED Grow Light 5x5ft Coverage with New Diodes & IR Lights Full Spectrum Veg Bloom Growing Lamps for Indoor Plants Seeding Flower Led Plant Light Fixture
  • Lwer 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 - 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.
  • Easy to use : Plug and Play, One-touch switch sets the light spectrum for your plant to suit it.
Rank No. #6
VIPARSPECTRA XS4000 LED Grow Light 400 watt with Samsung LM301B Diodes & MeanWell Driver, Dimmable Full Spectrum Plant Grow Lights for Indoor Plants Veg and Bloom for 5x3/4x4 Grow Tent, White
  • TOP PERFORMANCE & HIGHER QUALITY YIELDS:VIPARSPECTRA XS4000 LED grow light adopts the latest high-quality LEDs technology-Samsung LM301B diodes, high energy efficiency LEDs increase yield of crops and save operation cost, generates more usable lighting per watt and provides better light canopy penetration.
  • OPTIMAL FULL SPECTRUM & FLEXIBLE DIMMIER: Consists of 3000K warm white, 5000K white, 660nm deep red, and 730nm IR light, which providing your plants with excellent full spectrum led grow lights. The red and IR light are particularly useful during bloom, which can speed up bloom time and enhance high yields to obtain the ideal harvest. An added dimmer knob is featured to manipulate the light intensity at liberty, provides desired needs for plants in all stages from veg to bloom.
  • SILENT OPERATION & SOLID CONSTRUCTION: No fans zero noise. Large areas of solid aluminum heat sinks help you to achieve the ideal cooling system. Adopts high safety performance MEAN WELL HLG series 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.
  • AMPLE COVERAGE & LESS ENERGY CONSUMPTION: Comparable to traditional 1200W HPS/MH while consuming only 400W, which helps to get 50% higher yield harvest and save costs. Perfect for 5’x4’ vegetative coverage at 28”and 5’x3’flowering coverage at 24”. Remember to properly adjust the height and brightness accordingly to your plants desired level for optimal growth.
  • STRONG BACKUP FORCE: Professional guidance, friendly customer service and US local after-sales service provides you with a pleasant shopping experience and helps your plants grow better. If you have any questions, please contact us at any time. Authentic VIPARSPECTRA grow light, your smart choice!!!
SaleRank No. #7
FECiDA LED Grow Light Dimmable 6000 Lumen 65 Watt, 2025 Best Grow Lights for Indoor Plants Full Spectrum, Hanging Seed Starting Seedlings Vegetable Growing Lamps, Daisy Chain Function, Built-in Fan
  • 【Higher Output & More Harvest】12.4"x8.4" Size Grow Light, 65 Watt Rated Power LED Grow Light, 6000 Lumen output LED Plant Light. Much higher output than other 60 Watt LED Grow Light Signed 600W in the market.
  • 【Stepless Dimming Function & Save Your Money】This LED Grow Light is designed with stepless dimming function. You can adjust freely the brightness and output of the grow light from 0-100% for different growth stages, but don't need to keep the brightness at 100% and adjust the hanging height of the grow lamp for different growth stages. Easy to use, save electricity and your money.
  • 【Application & Use Guide】You can use this 65 watt led grow light for all your indoor garden but not only grow tent due to it's just perfect output and dimming function. Two 65 Watt LED Grow Light is perfect for a 2x2ft grow tent or area for all Growth Stages. And you'll get bigger coverage and more uniform lighting. Hang the grow light at 35-45CM height from your plants, set brightness plant light at 30%-40% for seed starting or seedlings, 60%-70% for growing, 90%-100% for flowering. You'll get great result and reasonable electricity bill.
  • 【Daisy Chain Function & Easy to Use】The power cable in the package is also just the daisy chain cable. You can use one power cable to connect the grow light to your home electricity and use other power cable to connect the grow lights together if you have more than two grow lights. You can connect max 8pcs 65 Watt led grow light together.
  • 【100% After-Sale Service】You can contact us by Amazon online message or fecida website at first time if you have any problem about our products. We'll response you within 24 hours and solve your issue as soon as possible.
SaleRank No. #8
AGLEX K4000 LED Grow Light, 2024 Upgraded Grow Light with Daisy Chain & Dimmable, Full Spectrum Plant Grow Lights for Hydroponic Indoor Plants Seeding Veg Flower Growing Lamps 5X6 FT Grow Tent
  • DAISY CHAIN ADDED & DIMMABLE GROW LIGHTS - Based on original K4000 plant grow light, AGLEX newest K4000 plant light adds daisy chain function, achieving to connect multi grow lights (max 100pcs ) and control them at the same time, it's very convenient for commercial growing. Stepless 0-100% dimmer knob available, it can help you freely adjust the brightness of the plant light, allowing flexibility to obtain perfect growth performance for each growing phase.
  • LOWER COST & HIGH YIELDS - AGLEX K4000 led plant growing lights use the newest high-yield SMD LED technology - 1192Pcs diodes. Though the LED Growing Lights only consumes 400watt of power, achieving higher average PPFD with 2343 umol/㎡/s at 5x6ft core coverage. It is also an ideal LED grow light from seeds to harvest. It will be a perfect option if you¡¯d like to light a small space, add a little light to your current space, or use it for clones, seedlings, or mothers.
  • OPTIMAL FULL SPECTRUM GROW LIGHT For INDOOR PLANTS - AGLEX 400w small grow light led consists of full spectrum White light 4000K, 660nm deep Red, 740nm IR light and 400nm UV light, infinitely close to natural sun light. It is an excellent full spectrum for vegetating and flowering indoor plants. Wide Input Voltage 100-277V, can meet most input voltage.
  • AMAZING HEAT DISSIPATION & WORKING QUIET - LED light board style and aluminum material can help quickly heat dissipation, reduce the light lost in walkways and walls, increase the light intensity, ensure longer lifetime and lower energy bill. With no fan design, the led grow light full spectrum can provide a quiet working environment without interruption.
  • VALUE FOR MONEY- The led grow light 400w is ideal for greenhouses, grow tents, stand rack, vertical farming, etc. If there are any questions or concerns, please feel free to message us. We will help you with great pleasure!
Rank No. #9
SZHLUX 2023 New 400 Watt LED Grow Light 4×4ft Daisy Chain Dimmable Full Spectrum Grow Light for Indoor Plants, Commercial Grow Lights for Seeding Veg Flower Growing Lamps
  • 【High Efficiency and Low Energy Consumption】- SZHLUX LED Grow Light utilize the latest in high yielding LEDs technology diodes, high Energy Efficiency with 2.9 Umol/J, delivers powerful light output and uniform canopy penetration to resulting maximum higher yields. Actual power is 400W with 972 LEDS, effective footprint is 4 x 4 ft.
  • 【2023 Upgraded Dimmer Modes】- This upgraded light has 4 dimmer modes for different growing stage, plants will get absolutely full spectrum nutrition. If you turn to 40% for the first dimmer switch, 5 white light bars will on; If you turn to 100%, all white LEDs will on, it’s best for seedling and growing. If you turn to 40% for the 2nd dimmer switch, 4 light bars will on with warm white, red and IR LEDs; If you turn to 100%, all light bars will on, it’s most suitable for blooming and fruiting.
  • 【Timing and Daisy Chain Support】The newest upgraded light comes with a timer switch, you can turn to any time according to your plants growth stage. More than 100 lights can be connected together with network cables for lager and commercial grow. Costs half compare to HPS light and greatly increased yields.
  • 【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.
  • 【Trapezoid Tube and Fanless Design】- Original Factory innovation designed Trapezoid-shape Led Tube for larger luminous area than T5 and T8 led tube. Premium aluminum shell with fanless design for faster dissipation speed, make your growing life easy and quiet, allowing your plants receive more energy and without burning.
Rank No. #10
Lorrtta Y-4000 400W LED Grow Light 4×4ft Coverage Full Spectrum Growing Lamps with LM281 6light Bars & high Efficiency Driver for Indoor Plants ,Seedling Veg and Bloom Daisy Chain Dimmable Grow Light
  • HIGH PERFORMANCE LED GROW LIGHT - Lorrtta Y-4000 Built upon SMD LEDs,Max 5.3g yield/watt,400 Watt with spot lighting for better crop quality. It delivers PPE Efficacy up to 2.9 umol/J and an average PPFD 1000 umol/s@12" 4'x4' coverage. Helping reduce the fixture count per lit area to accelerate the adoption of horticulture lighting.
  • FRAME STRUCTURE & AMAZING HEAT DISSIPATION - Built-in removable bars interval,enable the exact dynamic PPFD control for each growing stages. Frame Structure designed for single or multi-tier growers who want to optimize their grow space for the maximum crop yield while producing the highest quality crops , 6 passive-cooled bars and aluminum heat-sink.Light bar style and aluminum material can contribute to better airflow and great heat dissipation. Ensure longer lifetime and lower energy bill.
  • DIMMING DAISY CHAIN & SUNLIGHT FULL SPECTRUM - The dimming daisy chain function can rotate dimming button easily to adjust the brightness10%-100% with adapts to different plant growth stages. 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 l
  • PRE-INSTALLED - Get immediate use and save on mounting costs.compact form factor, flexible mounting,Waterproof coating full spectrum and easy control make it a high performance commercial grow light for great yields.Y-4000 400w grow lights . Especially suitable for commercial growing, horizontal and vertical farming, greenhouse, planting, pipeline cultivation, and hydroponic growing system and grow tent for greenhouse.
  • BEST SERVICE- We are a professional LED light manufacturer with strong R&D team. 1 years warranty plus 30 days money back guarantee. If you have any problems, please feel free to contact us. We will provide you with completely satisfying reply.

Last update on 2024-03-15 / Affiliate links / Images from Amazon Product Advertising API

How Do You Buy The Best 400W Grow Light?

Do you get stressed out thinking about shopping for a great 400W Grow Light? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching 400W Grow Light, which is why we have assembled a comprehensive list of the greatest 400W Grow Light available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 400W Grow Light that you consider buying. Your questions might include the following:

  • Is it worth buying an 400W Grow Light?
  • What benefits are there with buying an 400W Grow Light?
  • What factors deserve consideration when shopping for an effective 400W Grow Light?
  • Why is it crucial to invest in any 400W Grow Light, much less the best one?
  • Which 400W Grow Light are good in the current market?
  • Where can you find information like this about 400W Grow Light?

We’re convinced that you likely have far more questions than just these regarding 400W Grow Light, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for 400W Grow Light, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 400W Grow Light. Make sure that you are only using trustworthy and credible websites and sources.

We provide an 400W Grow Light buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 400W Grow Light currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of 400W Grow Light has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an 400W Grow Light?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your 400W Grow Light.
  5. Customer Ratings: Number ratings grade 400W Grow Light objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 400W Grow Light.
  7. Product Quality: You don’t always get what you pay for with an 400W Grow Light, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an 400W Grow Light is should be an indication of how long it will work out for you.

We always remember that maintaining 400W Grow Light information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding 400W Grow Light is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.

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