Our new GT series car chargers are not only solidly built to handle Canadian winters but great looking with an industry first Dual LED power indicator in amber orange color. Fast charging and safe for any phone.Micro USB connector is the most popular connector for all newer phones since 2010. Works on most brands. Specification: Loading current:650-900mA Short circuit current:600-1200mA Input voltage:12-24V Output voltage:4.85-5.15V PCB: single Length of the Cable: 8 feet Cable diameter: 3.5 mm IC(34063): Wide voltage operation range, operation from 3.0 V to 40 V Input; Low Standby Current, the output current have the function of restricting loading and over loading protection, it will avoid the damage to the mobile phone or charger; Output Switch Current is high to 1.5 A, you can adjust the output voltage (in 5V-12V); Frequency operation is high to 100 kHz, the inside base reference voltage is precision 2%.