DROK LM2596 Numerical Control Voltage Switching Regulator DC Buck Converter LED Voltmeter 32V to 24V to 12V to 5V Adjustable 5-32V to 0-30V Step Down Variable Volt Power Supply Stabilizers Car Battery

Key features

• ON/OFF is the output voltage control button. when connect the power supply, the default option is to turn on the output voltage. press the button will turn off the output voltage. then press it again can turn on the output voltage again, followed by recycling; the two buttons named IN & OUT (which are on the left of the digital display) can switch between current input voltage and output voltage.
• SET key is to set the output voltage, press SET shortly, the decimal place of output voltage flashes; press the two buttons named + & - to increase or decrease the value.
• It is low power consumption, and has terminal and retain the wire bonding wiring point.
• Please make sure that you use this module within its working range; do not output short-circuit or charge the battery, otherwise the board would burn.