Mighty Mule® MM560 Automatic Single Swing Gate Opener, 18'Works on all gate types like ornamental, wood, chain link, tube and panel. Designed for a single gates weighing up to a max. 850 lbs or max. length of 18 ft. Open your gate from the convenience and security of your vehicle with the press of the remote button. Battery continually charged by AC transformer (included), or with optional solar panel charger kit. Easy to install, detailed manual and DVD included. Features Dual Sense Technology that meets