Adjustable 4.0-40V to 1.25-37V 5/12V DC LM2596 Voltage Regulator Experimental Power Buck Converter+LED Voltmeter

Module Model:LM2596 Buck Converter + Voltmeter
Cutting Size: 66.04mm x 35.05mm
Input Voltage: DC 4.0~40V
Output Voltage: 1.25V~37V (continuously adjustable, the input voltage must be 1V higher than the output voltage)
Output Current: 2A(normal and stable), 3A Max.
Ripple Frequency: About 150Khz
Ripple Peak: About 100mV
Display Color: Red
Voltage Meter Error: ± 0.1V
Measure Range:4~40V (for measure accurately, please ensure that the input voltage is more than 4V)
IN+: Input Postive
IN-: Input Negative
Out+: Output Postive
Out-: Ouput Negative

Features:
A key switch input and output voltage
green light: measuring the output voltage
red light: measuring the input voltage
with terminal and retain the wire bonding wiring point
If remove the P3 jumper cap, the voltmeter shutdown
Lower Power Consumption