ALEKOŽ solar charge controller is used to regulate Solar Panel Battery and control solar panel in solar system automatically. Safe and easy to set up and operate, suitable for small solar energy system. When using ALEKOŽ solar controller, remember first to connect with the battery, and then connect with the solar panel. Rated voltage 12V or 24V. Rated load current: 10A, 20A. Output: 24 hours. Working temperature: -20 ~ +60 Celsius. Voltage of power cut-off: 10.8V or 21.6V. Voltage of power resume: 11.8V or 23.6V.