DROK® DC-DC Buck Boost Converter 5V-25V to 0.5-25V 2A High Efficiency Voltage Regulator 5V 12V Variable Volt Power Supply Stabilizers with Blue LED Voltmeter for Car Battery Fan

Product parameters:
Input voltage: DC 5.0-25V
Output voltage: DC 0.5V-25V (adjustable)
Continuous Output Current: 2A (max)
Continuous Input Current: 2A (max)
Input / Output Power: 25W (max)
Display color: blue
Dimensions: 47 * 41 * 16mm (L * W * H)

Features:
Input and output voltage can display alternately
The starting state can be set freely.
On the right side is a momentary switch that is for turning the output on and off, you don't have to disconnect it to turn off whatever you have connected, it is more convenient to control the output.
This module have the big power MOS to protect the circuit in case of connecting reversely, which can improve the efficiency and reliability.

Working Mode:
Input voltage mode: default display input voltage, display as ".", LED indicator ON, the output is off.
Output voltage mode: Press S1 switch to output voltage mode, display ".", LED indicator off, if turn off the output, display "OFF".
Alternate mode: Press S1 key again, display input/output voltage alternately in 3 seconds, press S1 again switch to "input voltage mode".

Memory Mode:
Long press S1key for 3 seconds, the module automatically remembers the current work status as the default power-on state.
[0]means boot default display input voltage
[1]means boot default display output voltage
[2]means boot default display input/output voltage alternately

Package Includes:
1x DC Boost-buck Converter