This 90-watt foldable solar charging kit runs a nominal voltage of 12 Volts DC and comes with an aluminum case that will protect your solar module during transportation. This module comes with adjustable legs which allow the module to be possitioned at the sun for maximum energy yield. This charging kit also comes with a charge controller mounted to the back of the module which regulates the charge to prevent the batteries from overdischarging. This kit also comes with cigarette style set of cables and battery clamps to facilitate connections.