1、Dual System Compatibility and USB Charging: Compatible with 12V and 24V systems, the solar controller uses an industrial microcontroller for automatic management of solar panels and batteries, with USB outputs for charging devices like phones and tablets. 2、Efficient Three Stage PWM Charging: Featuring fast, bulk, and float charging phases, the solar charge controller uses three stage PWM regulation for efficient, fast, and smart charging, effectively extending battery life. 3、Comprehensive Protecting Features: With overcurrent, short circuit, reverse connection, low voltage, and overcharge prevention, the PWM solar charge controller enhances system safety and efficiency. 4、Low Self Consumption for Off Grid Systems: Designed with extremely low self consumption, this solar panel regulator is an energy saving solution for off grid systems, maximizing system efficiency and battery life. 5、Versatile Applications for Solar Systems: Ideal for use in solar power systems, smart homes, solar chargers, ventilation systems, light boxes, billboards, and warning lights, this controller offers broad applicability. Item Type: Solar Charge Controller Material: ABS System Voltage: 12V/24V Automatic Adaptation USB Output: 5V/2A Working Environment Temperature: 20℃ to +60℃ 1 x Solar Charge Controller 1 x Instruction Manual