Gatekeeper SKC-600DC AC/DC Sliding Gate Opener Kit Supports sliding gates up to 50 ft. span and 650lbs., 2 Remotes Included Battery Backup Heavy Duty DC Motor with AC 110V Power Supply Solar Power compatible Magnetic Limit Switches for easy adjustment Keypad Interface, Push button interface, Reliable steel geared system UL 325 Safety Auto Reverse, auto close feature