1,LED power driver< with wire > 2,Input Voltage:AC 180-250 ... or small than 5 w 4,Port have:4 port LED power driver< with wire >Input Voltage/ Frequency:AC 180-250 ... ,small,cute,and favourable.you do not need another transforamer for Led lamp if you use this kind of power supply,and ... it have 1 meter long wire,4 ports.it designed for our LED lamp.It will be popular used in electric appliance ...