Enclosed style for Popular Mid-Power Slim-Line Models 210042, 210097, 210099 & 212025. FR50 enclosure (flammability rated UL V-0) and completely epoxy sealed for water resistance (suitable for IP66 installations). Integral 3/8" threaded nipple for convenient mounting through a standard knock-out. Available with our without internal thermal protector. 3.56"L x 1.91"W x 1.56"H; 3/8" Nipple threads - overall height 0.56", thread height 0.45". Fully UL Listed for Canada and the U.S. Provided with steel lock-nut for attachment to fixtures. See Slim Line table of models for further information.