... running response sensitive save energy environment frendly Garage door motor 1, Made by American Micro computer CPU, ... optional to close down door after open up.3, learning code design, high security. Long remote distance.4, Connecting siren ... lamp: AC200V25W *recommended door height: 1800mm-2800mm *recommended door width: 2400mm-3300mm *working temperature: -20°C-50°C *remote control battery: 12V/27A ...