This solar kit is assembled to help you make your gate opener system independent of any external power source except for sun. In any case of emergency when the power goes out your gate opener will keep its full functionality with the 50 Watt solar panels and a couple of high capacity back up batteries. It is a great alternative for generating electricity which not only brings down your electricity bill, it also helps in reducing carbon emission by not using electricity produced by fossil fuel. A solar panel helps in collecting solar energy so that it can be used to fulfill general daily electricity requirements as well as development of advanced technology. ALEKO solar panels use only 'Grade A' quality, high purity silicone cells. The aluminum frame is specially produced for solar panels. FeaturesIdeal for rural areas with possible power outagesDaytime charging and night time useNominal Output Voltage 24VIncludes:50W/24V Monocrystalline Solar Panels, 2 x 18AH Batteries, Plastic Box for Batteries, Solar charge controllerSpecificationsWatts: 50WVoltage: 24VOperating Voltage (Vmp): 36.5VOperating Current (Imp): 0.82AOpen Circuit Voltage (Voc): 44.6VSolar Cell: 72PcsWeight: 40 lbs