This 30A charge controller is compatible with 12V 24V system. Fully 4-stage PWM charging (Boost, ABS, Equalization, Float), the power MOSFET is used as an electronic switch without any mechanical switches and equipped with an industrial-grade STM 8 microprocessor to extend your battery life cycle.<br> PV/Battery/Charge backlit LCD display charging and discharging parameter. Dual USB can give your electronic product a maximum of 5V 2.5A.<br> This solar controller is suitable for lithium-ion/lithium iron phosphate/lead-acid batteries (OPEN, AGM, GEL ) with multiple load timers (load must be DC). It has a wide range of applicability and automatically identifies day/night. To protect your battery life, once the battery voltage drops below 8V, the solar controller will automatically shut down.<br> PWM Charge Controller Protection: Dual MOSFET Reverse Current /overheat/undervoltage discharge discharge/short circuit/open circuit/overload/overcharge protection.safer for home,industry,commercial etc.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin