PowerGen White Quad USB 4A 20w Travel Wall Charger with Flip Down plug for Apple and Android Devices PowerGen Quad Port USB AC Charger charges your iPads, iPhones, iPods, Android Phones and Tablets Use your existing USB charging cables to charge most USB powered devices / Easy-to-see LED confirms whether USB charger is properly connected Soft Blue LED shows when charger is receiving power. Input:100-240V 500mA ; Output:DC 5V 40A Max. or 20W (A combined total of Max. 4A) Sophisticated circuit design with over-heated, over-current, over-charging protection. Charging will be automatically stop when battery is full.