These days, we are taking more and more USB devices with us in the car, and power demands are ever-increasing as we use our smart devices. This car cigarette lighter adaptor provides 4 USB charging ports at 2.4A per port or a max of 7.2A combined charging power. That’s enough to charge tablets, smartphones, and other high demand devices. Works on 12V or 24V systems, so it is suitable for trucks and boats too.