1,Input : 100-240V 2,Output :8.4V 1A 3,Certificate:FCC, CE & RoHS 1,Input:100-240V 50-60HZ2. ... and constant voltage,5Safety standard:EN60950 UL60950 GB4943...6,Stable:With IC design,very stable and safeSupport:EU,USA,AUS AND ... quality with new IC design,could used for two or three years.2,Fast delivery3,Competitive price. 8.4V 1A li ion battery charger ...