Item Type: Solar Controller Product Material: Plastic System Voltage: 12V, 24V automatic identification Maximum Photovoltaic Voltage: 23V for 12V battery, 46V for 24V battery USB Output: 2 way USB output, maximum 5V 2A Standby Current: Less than 10mA Operating Temperature: - 35 to +60 Package List 1 x Solar Controller 1 x Manual Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1Automatic Adaptation: This PWM solar controller can automatically adapt to 12V, 24V, which is easy to operate, convenient for you to use. 2Plastic Shell: Made of plastic material, the shell of this controller is wear resistant and durable, providing the controller with a long life span. 3LCD Display: This controller is equipped with a LCD display, you can easily monitor the running statues of this controller, very convenient 4Multi Protection: This controller has multiple protection measures, over current protection, short circuit protection, undervoltage protection, reverse connection protection, temperature compensation, over voltage protection. Use the controller with confidence 5Wide Application: This controller is widely used for villas, outdoor RVs, solar power generation systems, yachts and ships, solar billboards, solar street lamps, etc.