1. 100% copper materialinside the motor, so it has a larger capacity and durable than other motors.

2. Overheat protection:The motor is with overheating protecting equipment. If the temperature up to 110, the power supply will be cut off automatically to protect the motor. Till the temperature down to 70, it can be used again. 

3. Mechanic Limit switchadjusts the door position in both "up" and "down" precisely and safety

4.Battery-up: the motor driver exchanges to supply from 220V AC to 24V DC

5. Operated by manual chain when power off.