1. 12V is generally for cars, 24V for trucks, 48V and 60V is generally for electric vehicles.
2. Lightweight and compact, ideal for vacations, camping and work trips. It can be plugged into almost any 12V power output vehicle, providing charging opportunities anywhere.
3. LED display shows the battery input voltage, output voltage. Cigarette lighter cable can supply power for device easily. If the out put power is higher than 200W, please using the Crocodile Clips to a battery.