The power supply mode of solar panel + battery makes the door opener work stably even in harsh conditions Cost-Effective Since it uses energy from the sun, you will pay a lot less in your electricity bill. It is more economical and pollution-free. It has a mature and advanced solar system, and the service life of solar panels can reach 25 years. Enjoy your convenient life! The door can be opened and closed without leaving home, keeping the car warm and dry, the remote control range can reach 50m, and it is more convenient in bad weather. More resistant to wind, our door opener kit features a corrosion-resistant aluminum swing arm and bracket for smooth operation and performance with a door opening capacity of up to 330 lbs. A variety of outdoor applications, and can be upgraded with compatible accessories for more functions., Manufacturer: DRAUXI