Module parameters:
Non-isolated buck regulator (BUCK);
Input voltage: DC 12V 24V （6-35V）;
Output voltage: DC 5V;
Output current: 3A (If working for a very long time, 2A output is recommended.With smart phone charging recognition resistance, support Apple devices, Android devices and other charging voltage within the rated output range.);
No-load power consumption: less than 25MA;
Switching frequency: 180KHZ;
Conversion efficiency: 93% (typical);
Over temperature protection: Yes;
Reverse input protection: Yes;
Overcurrent protection: Yes;
Working temperature: -40~+85 degrees Celsius;
Output indicator: Yes;
Connection mode: Terminals;
Dimensions: 59*21*18mm(LWH);

Tips:
If your device's original charger is 5V1A, you don't need to worry about this 3A's buck charging module will damage your device, because the actual input of your device's charging current is completely controlled by your device.
If your device allows input of 3A charging current, the module will output 3A of current; if your device only allows input of 1A of charging current, then the module will only output 1A of current, not 3A of power will always be for any device Output 3A current.
Charging your 1A device with a 3A charger will only reduce the load on the power supply and extend the life of the power supply without worrying about damaging your device.

Package Included:
1pcs 5V 3A Dual USB Power Supply Module