1,LED power driver< with wire > 2,Input Voltage:AC 180-250 V / 50 ... than 5 w 4,Port have:4 port LED power driver< with wire >Input Voltage/ Frequency:AC 180-250 V / 50 ... useful: power saving,simple,small,cute,and favourable.you do not need another transforamer for Led lamp if you use this ... .It will be popular used in electric appliance . LED power driver