... roller door operator, rolling garage door opener 2, 24V DC motor drive unit 3, Rolling code 4, Safety auto ... Inpout Voltage : AC230/110V selectable2, Motor Type : 24V DC motor , Quiet operation and reliability, Drive unit housed within ... lubrication required3, Power : 120W( 240W if use use dual motors , power doubled)4, Max Drive force : Max Door ... opener, roller door operator, garage door opener dc motor