Specification: Item Type: Solar Charge Controller Material: Plastic Product Size: 120 x 80 x 40mm / 4.72 x 3.15 x 1.57in Efficiency: ≥95% Noise: <55dB Application: For solar street light controllers, solar chargers, solar electric tricycles, solar toy cars, household solar panels, solar monitoring and other usage scenarios. Weight: 482 g / 17 oz Applicable Batteries All kinds of batteries with charging voltage between 10-30V. Applicable PV Panel Parameters Open Circuit Voltage 18V-55V Maximum Power Voltage 17V-55V Charging Module PV Input Starting Voltage 18V-55V PV Input Tracking Voltage 17V-55V Output to Battery Voltage 10-30V, adjustable. Output to Battery Current Maximum. 25A Load Loss 0.35W Voltage Regulation 1% Load Regulation 1% Protection Module Battery Under Voltage Protection Yes Battery Terminal Short Circuit Protection Yes Battery Anti Reverse Protection No Over Current Protection Yes Temperature Protection Yes Protection Class IP66 Working Temperature -40℃~+65℃ Package List: 1 x Solar Charge Controller 1 x English User Manual