Power Inverters descriptions： We use high-quality raw materials, all materials are very suitable for the product, please rest assured to buy. Dc-dc Converter, Step Up Power Booster Module. Specifications: Electrical Characteristics:   The Maximum Output Current: 2A.   The Input Voltage: 2V ~ 24V.   The Maximum Output Voltage: 28V.   Efficiency: Max 93%.   Mechanical Properties:   Product Size: 36 Mm * 17 Mm * 14 Mm.   Method Of Use:   The Module of the IN+ and - After 2~24v, IN Adjusting the Potentiometer Can Adjust Output Voltage, Output Voltage is Greater Than the Input Voltage.   Matters Needing Attention:   The Input Voltage Should Not Exceed the Maximum Input Voltage.   The Peak Current Output Current is No More Than TV University. Package Includes: 5 X DC-DC Converter ,Step Up Power Booster Module . Products number : SOMONO156881