Light Efficient Design 1' x 4' - 18/26/35 watt - 120/277 volt - 3,500K/4,000K/5,000K - CCT Selectable - White - Volumetric - Dimmable | Light Efficient Design LED Troffer (RP-TV-G1-1X4-35W-40K-WC-TAA 01636)