Some 1000-watt lights emit less watts than others because they use less powerful LED chips. Of all the lights on this list, the one whose power output is closer to 1000 watts is the Advanced LED Lights XML 650, but its price per watt is the highest. But we believe the coverage it offers justifies its price. The light can illuminate 24 plants to maturity and provides enough coverage for a 5.5ft x5.5ft grow tent. The two lights with the lowest price per watt are the HIGROW 1000W Double Chips Grow Light and the Dimgogo LZ090-XW 1000W Grow Light. However, when it comes to watts produced, the HIGROW light beats its counterpart.

Product DetailsRatingPriceWatt/hrFootprintLifespan$/watt
King Plus 1000w Full Spectrum Grow Light With Double Chips
(4.5)
4.5/3935
$59.991853.4' x 3.8'100000 0.32
BESTVA DC Series 1000W LED Grow Lights Full Spectrum Indoor Plants Veg and Flower
(4.5)
4.5/3187
$79.991855.1' x 4.7' at 24"100000 0.43
BLOOMSPECT Upgraded 1000W LED Grow Lights with Veg & RED & Bloom 3 Modes, Daisy Chain, Double Chips Full Spectrum Plant Grow Light for Indoor Plants Veg and Flower (100pcs 10 Watt LEDs)
(4.6)
4.6/2258
$69.991803.0x3.0ft50000 0.38
MARS HYDRO TS 1000W Led Grow Light 3x3ft Coverage
(4.7)
4.7/5908
$149.991503 x 375000 0.99
Phlizon 2020 Newest 1000W Plant LED Grow Light Used with Samsung LM301B LEDs Dimmable Full Spectrum Grow Lamp for Indoor Plants Led Growing Light for 2x4ft Coverage
(4.5)
4.5/484
$79.991002 x 4ft50000 0.79
Advanced Platinum Series P900 900w 12-band LED Grow Light
(3.2)
3.2/46
$1,194.335574 x 4' at 18"100000 2.14