DC to DC Automatic Boost Buck Converter Step UP Down Module Voltage Regulator 5 5 30V to 0 5 30V with LCD Display

Specification: Type: 4A non-isolated step up/down constant current power supply module Input Voltage: 5.5-30 VDC (at 5V input, it can also step up down voltage, but the voltage current measurement is inaccurate; when lower than 4.7V, under-voltage protection) Output Voltage: 0.5-30VDC adjustable Output Current: 0.2-3A adjustable, enhance heat dissipation can be up to 4A (please enhance heat dissipation when module temperature is over 65?) with constant current indicator light, output power do not exceed 35W; for low voltage output, current do not exceed 4A, otherwise it will burn out. Voltage Display Resolution: 0.05V Current Display Resolution: 0.005A Conversion Efficiency: About 88% Soft Start: Yes (it may fail when big power load module start) Reverse Input Protection: Yes Output Flow Back Protection: Yes Short Circuit Protection: Yes Frequency: 180KHZ Weight: 48g / 1.7oz (approx.) Package list: 1 * Module 4 * Plastic Supports 1 * Heat Sink