Lightline 2 3/4" x 2 1/2" Rectangular LL1 1 T5/ T5HO, T8, Indirect, Indirect/ Open, Lightvent, Indirect/Direct, Asymmetric Wall. Housing AA 6063 T6 extruded aluminum. Diecast end plate mechanically attached with no exposed fasteners.Die-formed reflectors of baked white enamel (nominal reflectance 86% and hammertone specular aluminum.Satin anodized or white paint standard; custom colors available.Specify 120 volt, 277 volt, or 347 volt. UL and C-UL listed and labeled. 4', 8' and 12' lengths in a single section for suspension spacing of 4', 8' and 12'.Refer to specification data sheet for specific product information