Application areas: DIY mobile power supply, monitoring power supply, children's car power supply, camera power supply, vehicle power supply, communication equipmentIt is suitable for occasions with strict requirements on volume and weight (such as aircraft models, etc.).Model/Name: Ultra-Small DC-DC Buck ModuleYou can adjust the voltage by placing a multi-meter on the output, synchronously, using a screw driver to adjust a potentiometer. It can be minute adjustments to achieve a precise voltage.Kindly reminderThese boards are adjustable current limiting, fixed 3A current limit.Please make sure that this module within its working range before using.Please don't output short circuit, otherwise the board would burn out.When setting the parameter, please make sure output voltage is stable before using the module to avoid any possible damage.Input voltage: 4.5V~28VOutput voltage.: 0.8V~20VOutput current: 3A (large)Conversion efficiency: 92% (high)Output ripple: Less than 30mVSwitching frequency: 1.5MHz (high), typical 1MHzOperating temperature: -45C~ +85CSize: 22mm x 17mm x 4mm (L*W*H)Warning: do not reverse the positive and negative terminals to avoid any possible damage; Do not use light load (less than 10% of output power) or without loadMaterial: PC+Metalcolour: green + blackPackage Contents:12 x Mini MP1584EN DC to DC buck converterOnly the above package content, other products are not included.Note: Light 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.