This USB travel wall charger port charges at a consistent 12 Watt Current. Compact and Lightweight pTron volta USB charger adapter allows charging at home or in the office via a USB cable connection. Use a compatible USB charging cable to experience fast charging. Single USB port that lets you charge all your USB devices with a single adaptor, to avoid the hassle of carrying multiple chargers. Volta features over voltage protection, over current protection, over heat protection, short circuit protection, anti static protection, fire resistant material, and BIS certification.