ViaVolt 4-Bulb T5 High Output Copper Fluorescent Grow Light Fixture with Timer, 2' Steel housing, Louvered and slotted for efficient cooling Comes complete with 2-chrome hangers and 7 ft. power cord.Included single outlet grounded multi-pin timer operates cycles from 15 minutes up to 23 3/4 hours. Blue spectrum 6400K bulbs included (24 watts each). 120-volt only. 1-year rebuild or replacement warranty