Product Description
Description:
It is a DC constant voltage constant current step down power supply module. It can be used as ordinary buck power supply module, charger and LED constant current driver. Simple and efficient, practical.

Features:
Low power consumption;
Support constant voltage constant current output;
Support charging function;
With heat sink and keep good heat dissipation.

Parameters:
Product Name: 12V 3A DC Step Down Power Supply Module
Working Voltage: DC 9.0V-120V( Keep input is at least 4. 0V high than output)
Output Voltage: DC 12V
Output Current:3A
Output Power:36W
Conversion efficiency: About 96%( The smaller the differential voltage, the higher the efficiency)
Working frequency:140KHz
Soft Starter:Yes( Failure at high power load)
Over temperature protection:Yes
Overvoltage protection:Yes
Short circuit protection:Yes
Working Temperature range:-40℃~85℃
Working Humidity range:0%-95%RH
Size:42*30*17mm

Using Steps:
1>. Connect right input voltage at input terminal.
2>. Turn ON power supply.
3>. Check output voltage by voltmeter and ammeter.
4>. Connect load.

Note:
1>. It is a step down power supply module, So please keep input is at least 4. 0V high than output.
2>. Input and output are Non-isolated, safe and reliable.

Application:
1>. Ordinary power supply;
2>. Battery charger;
3>. LED drive power;
4>. Power conversion.

Package includes:
2 x 12V 3A DC Step Down Power Supply Module
1 x red and black cable