SainSmart Adjustable Boost 3~35V to 3.5~35V 5/12V DC Regulated Power Supply Voltage Converter Module with Digital Voltmeter Powered by SainSmart advanced technology Input Voltage: DC 3~35V,Input current: 9A (Max.) Output Voltage: 3.5V~35V ( Adjustable,Boost, output voltage&gt;= input voltage) Output Current: 6A (Max.) Display Color: Red