Saunter T4-28WLT41K T4 Fluorescent 28-Watt ~4100K 45-5/8" Lamp (Bulb Only) Slim T4 Fluorescent Aluminum Linkable Light Fixture - White Enamel Finish Energy Savings - Output Equivalent of 155W Ribbed Acrylic Light Shield Cover Build-in 120V/60Hz Instant-on Electronic Ballast (*220 Volt/50Hz available via special order) Voltage: 120 VAC