Fluorescent High Bay Fixture, Lamp Quantity 6, Lamp Type T5HO, Suggested Lamp Item No. 5AE35, Fixture Wattage 360W, Voltage 347 to 480VAC, Description/Special Features Uplight, Length 48-1/16 In., Width 18-1/8 In., Height 2-3/8 In., Light Distribution Narrow, Reflector Type Miro4(TM), Reflector Material Aluminum, Mounting Height 15 to 40 ft., Space to Mtg. Height Ratio 1, Lamp Watts 51W, Ballast Type Electronic Programmed Start, Ballast Quantity 3