Use it when: 1. You left your AC charger at home. You can still charge your cell phone (or other portable device) if you have a car charger. 2. You need a spare charger in your office 3. You lose your AC charger. You don't have to buy another one. Simply plug in your car charger into this adapter. Charge it at your home or office. And Smokers may use this adapter with car cigarette lighter indoor.
Features:
Input: 100V-110V AC (wall plug)
Output:12V DC (car lighter plug/Car charger)
Max. Amp 650 mA
Transform 110V AC from Wall Plug into 12V DC for Car charger or Car lighter Plugin