... Adopts direct current electrical engineering device, for steadier operation, low door opener: 220volts/110volts, 800Nm,1000Nm,1200Nm.Features:1) Adopts direct ... function remembers last position of door when power is lost5) Rolling code remote control, up to 100 million codes that cannot ... used to open or close the doorPacking: carton sectional garage door opener, door motor,industry door opener