... supply90VAC~250VAC, 50/60HzVoltage output12V DC, 24V DC Brushless Motor55W,24V DCOpening speed and closing speed250~550mm/SCreep ... in the controller, realizing wireless remote parameter setting.7. Powerful intelligent self-closing function, at the statue of locked, ... inside signal loop, open and close accurately.12. Adopting DC brushless motor, and worm gear, worm rotation, starting torque is big ...