OPTIMUM OVT-DRI132UV1SI(A)ESMBBSSL 8' 2 LAMP T8 TANDEM LENSEF VAPORTIGHT (1 LAMP PROFILE, 2 LAMPS TOTAL); LINEALLY RIBBED ACRRLIC LENS; 1 - ADVANCE IOPA2P32SC, .87BF, 120-277V, INSTANT START BALLAST; ENHANCED SPECULAR REFLECTOR; STAINLESS SPRING MOUNT BRACKET; MOUNTING BRACKET BAIL FOR CHAIN HANGING; STAINLESS STEEL LATCHES