ITEM NAME:12V to 5V USB DC-DC Buck Converter Step Down Module Power Supply E8T9 12V to 5V USB DC-DC Buck Converter Step Down Module Power Supply E8T9 All epoxy sealed buckets with lids sealed with water; Compact and lightweight, easy to use and carry; uninsulated high-efficiency Product Description Colour:Black Material: plastic shell Product Size: 43 x 22.2 x 10.8 mm Approx. USB cable length: 30mm approx. Input voltage:12V DC Output voltage: DC 5V / 3A Thanks to the USB interface Package Contents:1 x Converter Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.