1.Built in car plug,free of wire twist problem. 2.Combination of 12V DC car charger & 110V-240V AC c 1.Built in car plug,free of wire twist problem.2.Combination of 12V DC car charger & 110V-240V AC charger for multi-usage.3.Pulse adaptor,cool charging & energy saving.4.Battery charge in 2 hours and then provide 4 hours continuous lighting life.5.3 white LED+1 Xenon bulb never need replacing.6. ...