Protect your outdoor lighting with the NESCO LV310WH Weatherproof Lamp Holder Cover. Constructed from durable die-cast metal, this white cover features a single 1/2 inch outlet, designed to mount one lampholder or device to a round weatherproof box. Ideal for exterior walls and soffits, it provides reliable protection against the elements.The NESCO LV310WH is a white, die-cast metal lampholder cover designed for weatherproof applications. It features one 1/2 inch threaded outlet and is suitable for mounting a single lampholder or device to a round weatherproof box on exterior walls or soffits. The cover is made of die-cast metal and is white in color.