Features 1.The LCD can display input voltage, output voltage, output current, and output power. 2.Anti-reverse protection of the input end, reverse connection will not burn the module. 3.Support boost-buck, adjustable output voltage within 0.5-30V, and adjustable current limit of 0-4A. 4.With button to control the output ON/OFF state, and can be set to ON or OFF by default. 5.Adopt boost-buck chip as the main controller, with external 60V 75A MOS tube as the switch tube. 6.Double 60V 5A SS56 schottky is used for rectification, and the 60V withstand voltage value is superior to the XL6009/LM2577 immature solution on the market. 7Low output ripple, with LC filtering, and the typical value is about 100mv. specificationItem Type: Module Input Voltage: 5.5-30V (when the input voltage is 5V, the boost-buck can also be realized, but the voltage and current measurement is not accurate; lower than 4.7V, undervoltage protection) Output Voltage: 0.5-30V Output Current: Work stably at 3A for a long time, and can reach 4A under enhanced heat dissipation Output Power: Natural heat dissipation for 35W, enhanced heat dissipation for 50W Voltage Display Resolution: 0.01V Current Display Resolution: 0.002A Conversion Rate: About 88% PackageList1 x Module1 x Cooling Fin