Low Bay Fixture Lamp Quantity 2 Lamp Type F28T5 Lamp Watts 28W Fixture Wattage 56W Voltage 120 to 277VAC Ballast Type Electronic Ambient Temp Range 0 Degrees to 104 Degrees F Length 61-21/32 Width 2 ft Height 3-9/64 in Lamp Not Included Suggested Lamp Item No 21GR01 Non-Apertured Housing Finish White Powder Paint Mounting Suspended Ballast Quantity 1 Metal Gauge 17 Standards cULus