It is a DC Buck Converter/Power Supply Module/Voltage Regulator/Adapter, Input Voltage: DC 5~36V, Output Voltage: DC 1.5~33V (0.5V every step)  can be slightly adjusted through adjustable resistance, Suitable for DIY an adjustable voltage regulated power supply, Industrial equipment Voltage convert, Power Supply Transformers, Laptop Power Supply, Batteries Buck, Car Power Supply, LED drive,Advertising screen,Monitoring System etc.

• Input Voltage: DC 5~36V
• Output Voltage: DC 1.5~33V (0.5V every step)  can be slightly adjusted through adjustable resistance
• Output Current: 3A max, rated 2A
• Application: Suitable for DIY an adjustable voltage regulated power supply, Industrial equipment Voltage convert, Power Supply Transformers, Laptop Power Supply, Batteries Buck, Car Power Supply, LED drive,Advertising screen,Monitoring System etc.

• This buck module is with 6-position DIP switch which can adjust voltage by 0.5V every step and every switch has working indicator, and it is also with trimming potentiometer, users can set the voltage at the range of 1.5V~33V easily and quickly.

• The trimming potentiometer has been adjusted, so users could turn DIP switch to set by 0.5V every step. If users adjusted the trimming potentiometer when they received it but they need 0.5V stepping value, at this time, users should adjust it back then it will work as normal.

• 1 x DC-DC Buck Module ( Power Supply Module/Voltage Regulator/Adapter )