Daylighting device designed for commercial and industrial applications. Closed cell insulation between roof flashing and reflector tube. Solid clamping band provides flame spread protection. Seamless, all aluminum construction with built-in roof flashing. Acrylic dome. Single or double lower diffuser with/without UV blocking. Unit comes completely assembled. AAMA/WDMA/CSSA 101/I.S.2/A440-08 certified.