This charger has 4 Light emitting port, made of PC fire retardant material, voltage and current is AC100-240V 50/60Hz 0.5A, output is 3.1A ÷ 4 ports (average shunt). The 4 ports can charge four mobile devices at speed at the same time, which really saves your time. It’s perfect as replacements for OEM charger or Old charger for travel ,home, office and gifts for friends and family.