Feature:1. The module contains three indicator lights, constant voltage and current state indicator (red, bright in constant current mode), charging indicator (blue), and fully charged indicator (green).2. The module has output short circuit protection. After short circuit protection, the module automatically closes the output and can be restored after the module is powered on.3. Easily adjust the output voltage and current with variable resistors.4. The module can be used as a battery charger, overload protection module, high power led constant current drive module.5. Stable output voltage and current, high conversion efficiency.Specification:Item Type: Regulated Power Supply BoardMaterial: Plastic, Aluminum, CopperFunction: Battery Charger, Overload Protection Module, High Power Led Constant Current Drive ModuleInput Voltage: 5~30VOutput Voltage: 0.5~30VOutput Current: 3~4AOutput Power: 35~60WPackage List:1 x Power Supply Module