Prevents overcharging of your 12-volt battery bank and regulates the output of your solar panel.A charge controller is recommended for any solar panel that is rated 12 watts or higher. Since solar panels can output more than 12 volts, this 8 Amp Charge Controller will protect your battery from overcharging damage. Designed to handle solar arrays (single or multiple solar panels) of up to 130 watts.Key FeaturesProtects battery from overcharging and high voltage surgesProtects the battery from nighttime discharging with built-in blocking diodeUse with any 12 volt solar panel system up to 130 wattsEquipped with easy to install plug and play connectorsAutomatic cut-in (at 13V) and cut-out (at 14.2V) for maintenance-free operationEasy to read LED light indicators show battery charged” or battery charging”Instruction Manual