We are offering car usb charger for phone. 1.input : 12v-24v dc2.output :5.1v-1.2a3.overload protection, short circuit protection4. High efficiency 75%5. Ripple and noise: output voltage 1%6. Operating temperature range: 0--40c7. Storage temperature range: -20 --- 85c8. High humidity operation :+ 40 c and 90 95%9. Color : whiteblack etc10. Mtbf:50000hours.