... Motor input power: 7N.m, Luminous power: 25W Door opener Features: Adopting of DC motor, which boasts stable running ... technique, it can remember the location of the door body after power-off, thus no need to ... is available for opening and closing of the door when the power is off; Aluminum alloy rail ... low-noise, beautiful appearance. Packing: carton box Door Opener,garage door motor,door operator