4 Port USB Step Down Power Supply

Application: the device with 5V Power supply, electrical appliances whose power less than 25W ,such as mobile phones, tablet pc, navigation systems, driving recorder,also can be used on the LED power supply.
With 4 USB port, you can also connect four USB standard device simultaneously.
Connect positive and negative terminals of the battery to the input positive and negative,then the input is completed.
Output: standard USB
Output voltage: 5V
Output current: 5A
Size: 4.8 x 4 x 2.2mm
Weight: 48g