2 ft. 2-Light 30-Watt White LED Hydroponic Linkable Plant Grow Light (4-Pack)Feit Electric's 2 ft. Dual LED Hydroponic Grow Light only uses 30 Watt and comes fully assembled with an ultra light weight design that can be used in hanging or flush mount installation. This no humming LED emits precise wavelengths and color for superior photosynthetic response in the 450nm blue spectrum preferred for vegetative growth. There are no lamps to dispose of or replace with this 2 ft. Dual Lamp with its cool operation that prevents