Keystone 1' x 4' - 24/30/35 watt - 120/277 volt - 3,500K/4,000K/5,000K - CCT Selectable - White - Center Basket - Power Select - Color Select - Future Fit - XFit - Dimmable | Keystone LED Troffer Retrofit Kit (KT-RKIT35PS-14DB-8CSA-VDIM 13686)