DROK 10A Synchronous Step-Down Voltage Regulator DC-DC 4-30V to 1.2-30V 12V Continuously Adjustable Volt Buck Converter Module 10A Synchronous Rectification Adjustable non-isolated buck module, constant voltage. Input Voltage:DC 4-30V; Output Voltage: DC 1.2-30V (adjustable,Default output 5V). Output Current:1-10A (the module can dissipate heat naturally for a long time within 6A, the temperature cannot over 60). With short circuit and over temperature protection. Without input reverse connection protection or output anti-anti-irrigation protection,if need please install diode at input/output port.