5V 700mA AC-DC Buck Converter Step Down Module

This Power Source For The Isolation Industrial-grade Module Power Supply, Temperature Protection, Over Current Protection And Short Circuit Protection, High And Low Voltage Isolation, AC85 ~ 265V Input Voltage, Wide 431 Precision Voltage Stability DC5V Output, Small Size, Stable Performance, Cost-effective. Suitable for arduino projects. 

The End of the Step Down Module Can Be Conductive, Do Not Touch The Bottom of Template when you Test or to Use, Need Mattress Insulator Pad, Clean Cardboard Conductive things, Avoid Power Board contact to conductive objects such as Wire, so as to Avoid Electric Shock And Burn Out The Power Supply Board. We recommended a Heat sleeve cover.