Plastic Shell: Made of plastic material, the shell of this controller is wear resistant and durable, providing the controller with a long life span. Multi 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 LCD Display: This controller is equipped with a LCD display, you can easily monitor the running statues of this controller, very convenient Wide Application: This controller is widely used for villas, outdoor RVs, solar power generation systems, yachts and ships, solar billboards, solar street lamps, etc. Automatic Adaptation: This PWM solar controller can automatically adapt to 12V, 24V, which is easy to operate, convenient for you to use.