Key Features Night Timer Function PWM charging circuit. Solid state construction for high efficiency charging Large terminals are used for easy installation. Automatic temperature compensation (-56 mV/℃) Choose the best conditions for rehydrated and sealed lead acid batteries. Night Timer Connected Solar Power Detects Sunset and Connects Load Charge/Discharge Control: PWM charging ensures a full charge of the battery and minimizes gas generation. Quiet solid state construction for charging It is also compatible with sealed and non-sealed lead acid batteries. It will shut off the load due to low voltage of the battery and automatically reconnect the load. Automatic temperature compensation: Built-in temperature sensor (automatic correction 28mV/℃). Heavy Duty Epoxy Filled Substrate for Durability Moisture-proof surface mount Low power consumption: Eliminates excess functions such as meters, and uses low power to contribute to long-term stable operation of the system.