This PMC-JP275 locking type receptacle cover provides the safe short-circuiting connection between the line and the load contact that you have been looking for. It conforms to ANSI C136.10 mounting standards, so it requires no special tools or settings. This accessory will keep your security lights, decorative lights, or walkway lights on at all times unless turned off from a remote location. The weatherproof gasketing keeps the elements from affecting the unit. This locking type receptacle is the ideal choice for safe, quality lighting controls for your photoelectric cells.