ViaVolt&reg; Propagation Light Stand Kit, 2' 4 Bulb Comes with four 4 6500K HO T5 bulbs (blue spectrum) 5,000 lumens per bulb/54w per bulb. Steel louvered housing for cool operation Wire hangers and mounting hardware for easy adjusting Propagation light stand is 57 wide x 27.5 high and 30 deep  is strong and durable Grow light may be daisy chained to other units. Two on/off power switches for two bulb operation per switch.