... unit 3, Rolling code 4, Safety auto-Reverse ,roller door operator garage door opener 1, Inpout Voltage : AC230/110V selectable2, Motor Type ... allows you to use the door manually.15, Courtesy lighting: Automatic Light Illuminates your garage for up to 90 seconds ... , Waterproof function19, Easy installation20, OEM, ODM is welcomed. roller door opener, roller door operator, garage door opener dc motor