Application areas: DIY mobile power supply, monitoring power supply, children's car power supply, camera power supply, vehicle power supply, communication equipment It is suitable for occasions with requirements on volume and weight (such as models, etc.). Model/Name: Ultra-Small DC-DC Module You can adjust the by placing a multi-meter on the output, synchronously, using a screw driver to adjust a potentiometer. It can be adjustments to achieve a precise . Kindly reminder These boards are adjustable current limiting, fixed 3A current limit. make that this module within working range using. 't output short circuit, otherwise the board would burn out. When setting the parameter, make output is stable using the module to avoid any possible damage. Input : 4.5V~28V Output .: 0.8V~20V Output current: 3A () Conversion efficiency: 92% (high) Output ripple: Less than 30mV Switching frequency: 1.5MHz (high), typical 1MHz Operating temperature: -45°C~ +85°C Size: 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 load Material: PC+Metal colour: green + black Package Contents: 12 x Mini MP1584EN DC to DC converter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.