2pcs LM2596 Adjustable Voltage Regulator 4.0-40V to 1.25-37V DC 36V to 24V to 12V to 5V Variable Volt Power Supply Car Motor Buck Step Down Converter with Red Voltmeter Display

Product features: 1. There are two buttons on the left side of the voltmeter, one is for input voltage display and the another is for output voltage display. You can press one of the two buttons to choose the voltmeter to display input voltage or output voltage. 2.There are output voltage adjustment "-" button for decreasing output voltage and output voltage adjustment " +" for increasing output voltage. 3. There are two LED indicators on this converter board, including the red LED and the green LED. The red LED will light on when you measure input voltage and green LED will light on when you measure output voltage. 4.It is low power consumption, and has terminal and retain the wire bonding wiring point. And If you remove the P3 jumper cap, the voltmeter will shutdown. Parameters: Module Model:LM2596 Buck Converter + Voltmeter Cutting Size: 66.04mm x 35.05mm Input Voltage: DC 4~40V 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) Wiring connection: IN+: connect IN+ to your Input Positive IN-: connect IN- to your Input Negative Out+: connect OUT+ to your Output Positive Out-: connect OUT- to your Output Negative Package includes: 2x DC-DC Volt Buck Converter