Double USB Car Converter Module 12V To 5V 3A 15W Power Adapter

Dual Double 2 USB DC-DC Car Converter Module 12V To 5V 3A 15W Power Adapter Feature: Input voltage: DC 7V-21V Output voltage: 5V Output current: 3A Max Output power: 15W Max Size: Approx. 65x27x14mm/ 2.56x1.06x0.55" It can be used for LED car display, GPS, MP3, MP4 car DVD, hard disk player and the stereo. This module is potted by epoxy so it's waterproof, shockproof, moistureproof, anti-dust and flame retardant The module boasts of automatic protection function when over voltage, over current, over temperature and short circuit braking and restore normal work after the conditions Note: The red wire connects to the positive, the black wire connects to the negative Package Included: 1 X USB Power Converter