The solar panel is a 5W solar powered battery charger for use with all current Mighty Mule model No. FM200, FM350, FM500, FM502, and commercial slider (MM-SL200B) opener systems and older model No. FM700 and FM702. Not compatible with older model No. FM250. Particularly suited for remote installations, each solar panel comes with tubular steel support, mounting clips, wire connectors, and 8' of low voltage wire. The Mighty Mule control board has clearly labeled terminal connections for easy installation of the solar panel. Installation in some regions will require multiple solar panels for adequate charging power. Dual gates require a minimum of 2 panels.