Specification: Item Type: Solar Charge Controller Material: Plastic Product Size: Approx. 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: Approx. 482 g / 17 oz Applicable BatteriesAll kinds of batteries with charging voltage between 10-30V.Applicable PV Panel ParametersOpen Circuit Voltage18V-55VMaximum Power Voltage17V-55VCharging ModulePV Input Starting Voltage18V-55VPV Input Tracking Voltage17V-55VOutput to Battery Voltage10-30V, adjustable.Output to Battery CurrentMaximum. 25ALoad Loss0.35WVoltage Regulation1%Load Regulation1%Protection ModuleBattery Under Voltage ProtectionYesBattery Terminal Short Circuit ProtectionYesBattery Anti Reverse ProtectionNoOver Current ProtectionYesTemperature ProtectionYesProtection ClassIP66Working Temperature-40℃~+65℃ Package List: 1 x Solar Charge Controller 1 x English User Manual Features Smart Charging: High efficiency MPPT real time tracking function, suitable for solar panels of different voltage. Better Designs: Adopting efficient synchronous rectifier circuit structure to ensures quick and stable charging. Great Matching: 10-30V adjustable output voltage supports various batteries, enables a wide range of application. Working Safety: With short circuit protection, over temperature protection, under voltage protection for safety. Reliable Using: Equipped with LED screen to display volt and current, also waterproof, dust proof and shock proof.