DC to DC Buck Converter 2A Step Up / Down Module, USB 4-13VDC Input, 1-30VDC Adjustable Output with LED Display Voltage Regulator Meter

4 Different Voltage input Connection Types, USB-A, USB-MINI, USB-C (5V) and a Positive / Negative contact Point (Input voltage: 4-13V) Adjustable Output Voltage: 1-30V Adjustable Output current: 0-2A 15W ★Quick Charge Deception Trigger Function: The Boost Buck Converter with intelligent fast charging deception function, it solves the problem of insufficient power supply for the USB input port. Support mainstream fast charge protocol, QC2.0 3.0, FCP SCP AFC. you can also choose not to use the fast charge function or automatically select the fast charge protocol ★Output Voltage Can Be Adjusted Arbitrarily: The output voltage can be adjusted arbitrarily, and the current limit is 0-2A (wide input 4-13V, wide output 1-30V arbitrarily adjustable, with short circuit protection, the short circuit will not burn). In the constant voltage mode, the output current is self-adaptive according to the load, not adjustable ★LCD Display Multiple Parameters: LCD display input voltage, output voltage, current, power, capacity statistics. Voltage resolution 0.01V, current resolution 0.001A ★4 Input Modes: USB male, Micro USB, TYEPE-C ，welding pads input, Input voltage: 4-13V. Output voltage: 1-30V ★Application: The handy, convenient, and intuitive travel voltage converter is used for small electronic projects. It is very suitable for school electronics class, perfect for small Arduino projects