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10 Best 400 Watt Grow Lights 2024 in the US

From leading brands and best sellers available on the web.

Sponsored

Nanoleaf E

Nanoleaf

Nanoleaf Essential Bulb

#1

Winner

SANSI Grow

SANSI

45%OFF

SANSI Grow Lights for Indoor Plants Full Spectrum, 36W Grow Light Bulb (400 Watt Equivalent) with Optical Lens for High PPFD, PPF 65.6 umol/s LED Energy Saving Plant Light Bulb for Seeding and Growing

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Sponsored

Nanoleaf E

Nanoleaf

Nanoleaf Essential Bulb

#2
SPIDER FAR

Spider Farmer

18%OFF

SPIDER FARMER SF4000, Samsung LM301H EVO Led Grow Light, Full Spectrum Plant Grow Light, 450W Dimmable & High Efficiency & Deeper Penetration Commercial Lamps for Seedling Veg & Bloom In 4x4 Grow Tent

#3
2024 Newes

KINGPLUS

20%OFF

2024 Newest KP4000 LED Grow Lights with Yield LEDs 5x5ft Coverage Full Spectrum Grow Lights for Indoor Hydroponic Plants Greenhouse Growing Lamps Veg Bloom Daul Mode

#4
VIPARSPECT

VIPARSPECTRA

33%OFF

VIPARSPECTRA P1000 LED Grow Light for Seed Starting Vegetables Bloom, Dimmable Plant Lights Dimming Daisy Chain Grow Lights for Indoor Plants Full Spectrum for 3x3/2x2 Grow Tent

#5
Spider Far

Spider Farmer

44%OFF

Spider Farmer SF1000, Samsung LM301H EVO Led Grow Light, Full Spectrum Plant Grow Light, Dimmable & High Efficiency & Deeper Penetration Lamps for Seed Starting Vegetables Bloom in 2x2/3x3 Grow Tent

#6
VIVOSUN VS

VIVOSUN

20%OFF

VIVOSUN VS4000 LED Grow Light with Samsung LM301 Diodes & Brand Driver Dimmable Full Spectrum Sunlike Lights with Glasses for Seedling Veg & Bloom Plant Lamp for 4x4/5x5 Tent

#7
RDJ Bouns

RDJ Bouns

20%OFF

RDJ Bouns 2024 Fresh 400 watt Led Grow Light for 3x3 Grow Tent - Wide Body 4 Bar LM281B+ LEDs and EPI 660nm Full Spectrum Daisy Chain Dimmable Ideal for Indoor Growers

#8
AGLEX K400

AGLEX

20%OFF

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

#9
AGLEX 330W

AGLEX

23%OFF

AGLEX 330W Led Grow Lights, Full Spectrum Grow Light with UV IR, Daisy Chain Foldable & Dimmable Plant Bar Style Grow Light for Indoor Growing Commercial Hydroponic Growing Lamp 3x4 FT Core Coverage

#10
BESTVA 202

BESTVA

20%OFF

BESTVA 2024 Upgraded BP2000 LED Grow Light with High Yield Diodes & Dimmable Full Spectrum Plant Light for Indoor Plants Seedling Veg and Bloom Grow Lamp for 4x2/3x3 Grow Tent

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