Features: 1.Excellent Performance: Intelligent 3?stage PMW charging improves charging efficiency,12V/24V system voltages are automatically recognized. 2.Function: Solar panel regulator can effectively prevent the battery from non equalization and sulfuration, extending the battery's service life. 3.Temperature Compensation: With temperature compensation employed, charging parameters can be automatically adjusted. 4.Multiple Protection: Solar charge controller has multiple protection functions: Battery over voltage, output overload, short circuit protection. 5.Professional Design: Boastiong an industrial grade design,the solar battery regulator can function well in various tough conditions. Specification: Item Type: Solar Charge Controller_x000D_ Material: Metal_x000D_ Charging Type: PWM_x000D_ System Voltage: 12/24V automatic identification_x000D_ Open Circuit Losses: 10mA/12V;13mA/24V_x000D_ System Current: 10A_x000D_ Rated Power: 150W/12V; 300W/24V_x000D_ _x000D_ Photocontrol Voltage: Photocontrol open 5V; Photocontrol close 6V_x000D_ Temperature Compensation Coefficient: -4.0mV//2V (Lithium battery without temperature compensation)_x000D_ _x000D_ Light Control Judgment Time: 1min_x000D_ _x000D_ Operating Temperature: -35 - +65_x000D_ _x000D_ Protection Level: IP68_x000D_ _x000D_ Overload and Short Circuit Protection: 1.25 times rated current for 30 seconds; 1.5 times rated current 5 seconds overload protection action; 3 times rated current short circuit protection._x000D_ _x000D_ Applicable Scenarios: Household, base station, rv, yacht, ship and other solar photovoltaic system