PEMENOL 15W DC-DC Buck Boost Voltage Converter, 5V to 3.3V 9V 12V 24V 30V CVCC Step Up/Down Module Adjustable USB Power Supply Module with Shell

The Output Voltage Can Be Adjusted Arbitrarily: The Adjustable USB Step Up Down Power Supply Module used as a USB input adjustable desktop power supply, the output voltage can be adjusted arbitrarily, and the current limit is 0-2A (wide input 4-13V, wide output 0.5 -30V arbitrarily adjusted, with short circuit protection, the short circuit does not burn)
Safe to Use: Used as a USB charging cable, the charging voltage and maximum charging current can be adjusted arbitrarily (any voltage, with constant current, anti-backflow, which can meet the charging of most batteries)
Three Input Power Modes: Input
1: Standard Type A USB Male. It just can input DC 5V.
Input 2: Micro USB Female. It just can input DC 5V.
Input 3: IN+ and IN- welding pads. It can input DC 4.0V - 13.0V. When using the welding pad to input, be careful not to connect the reversed positive and negative poles, and do not connect to AC power
Multiple Protection Functions: short-circuit, over-current, over-temperature, over-power, over-voltage protection, charging anti-backflow protection
Wide Application: It is widely used in ordinary power supply, battery charger, LED driving power, instrument voltage display, test counter, circuit test, power conversion. For more details, please read the user manual