Envision Indirect 9" x 3" RoundedENW1 1 T8 INDIRECT, ENW1 2 T8 INDIRECTHousing AA 6063 T6 extruded aluminum forming an 9" X 3" rounded channel.Die formed reflectors combine hammertone specular aluminum and baked white enamel (nominal reflectance 86%). Optical system includes micro-prismatic, 100% virgin acrylic specular/diffusing optical lensSatin 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