These Electric Fence Solar Panel Charging Kits are designed for the use with 12V battery powered energiser electric fence set ups. These Panel kits include the solar panel and mounting brackets, leads and generally a solar charging regulator The 12V battery and electric fence energiser are sold separately.  These kits will safely charge your 12V battery that the energiser is being powered from and will keep the battery topped up during the day so it will run the energiser through the night.