Features Full 3-stage PWM charging management, dual MOS anti-backflow circuit with extremely low heat generation. With stable performance and high accuracy, suitable for circuit protection in household, industry and trade. With the main industrial grade control chip and a large LCD display, the charging and discharging parameters are adjustable. With over-current, short circuit, reverse polarity protection and self-recovery without damaging the controller. The system voltage is 12V 24V adaptive and has two USB interfaces, which are convenient and safe to use. Specification: Item Type: Intelligent Charge Controller Material: ABS System voltage: 12V 24V adaptive Rated charging current: 20 A. Rated discharge current: 20 A. Highest photovoltaic voltage: <50 V. Floating voltage: 13.7 V (default value, adjustable) Discharge voltage: 10.7 V (default value, adjustable) Discharge recovery voltage: 12.6V (default value, adjustable) USB Output: 5V 1A Standby current: < 10 mA. Working temperature: -35℃~60℃. Package list: 1 x photovoltaic charge controller. 1 x user manual (English language not guaranteed). Package List 1 x Photovoltaic Charge Controller 1 x User Manual