ITEM NAME:5PC Mini DC-DC Converter Step Down Module Adjustable Power Supply Output 0. B1X8 5PC Mini DC-DC Converter Step Down Module Adjustable Power Supply Output 0. B1X8 This is a DC power step down converter module that is ultra light weight, just the size of a finger nail. This Mini DC-DC Adjustable Step Down Converter is used for DIY mobile power, monitor power supply,buggies power,camera power supply,car power,communications equipment supply,there are a variety of size and weight for demanding situations (such as aviation models,etc.). Input voltage: 4.5V-28V Output voltage: 0.8V-20V Output current:Rated current is 2A,maximum 3A (Additional heatsink is required) Conversion efficiency:96% ( Highest ) Output ripple:less than 30mV Switching frequency:1.5MHz( Highest ), 1MHz Typically Work temperature: -45 °C to +85 °C Potentiometer adjustment direction: clockwise (decrease), counterclockwise (decreaseincrease) Dimension: 22mm* 17mm* 4mm (L*W*G) NOTE: This can't be used to step up Voltage Package Includes:5PCS x Mini Converter Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.