You probably need to be sure of the voltage coming into whatever it is you need that for... Don't want to hook it up to a PDU putting out 208V if you only have a 110V device.
Bahaha yeah really. Ours is 208v. 240v is more common than 220v though.
Hoeveer most devices are ranging from 100-250v on Switch mode power supplies.
Of course, the Mac crashed completely only a few minutes into trying to use this on the LG. Probably unrelated, it crashed three times in the last two hours, only once while attached to the TV.
