Power hook for industrial high bay luminaires furnished with receptacle, Plug, 18 inch 16-3 SO cord and loop fixture hanger. Designed for suspension of HID, fluorescent and incandescent lighting fixtures. Loop that suspends fixture cannot be removed until plug is disconnected from power receptacle. 20 Amp plug, receptacle and cable are provided in all voltages. Rotating plug after insertion locks plug in receptacle, eliminating plug fall-out. Loop and hook provide flexible mounting, ideal in areas where vibration is encountered.