DC-DC 12V to 5V 10A step down buck converter power regulator module


DC12V to DC5V power module 50W


 This power module should be a design problem. When the input power is frequently touched, there is no voltage output. After testing, connecting a resistor in parallel at the input end to release the voltage can basically solve this problem. 
The smaller the resistance, the better the effect, generally between 100 ohms and 1K. Special price.