Features: 1. Over loading protection. 2. Durable spiral rod to drive. 3. Afford continuously open and close over 100,000 times. 4. Opening Direction: One way draw or center opening. 5. Single & Multi channel transmitter. 6. Integrate with Auto home system. 7. Easy installation and setup, design and develop under DIY concept. 8. Designed with reliability and safety - 24V DC transformer. Technical Data: * Voltage: DC 24V * Load Capacity: 30kg * Max. Length: 5.4m * Remote range: 30m * Radio Frequency: 433.92MHz * Power supply: AC110-240V Power Switch