I have two Ikea lamps which clamp on shelves, and which I rather like. Unfortunately, the AC adaptors on both have stopped working. (They broke down almost as soon as I got the lights.) The adaptor gives output as 1580mA at 12v. I wonder if it is possible to get adaptors like that?
Unfortunately I bought the lamps abroad - there is no IKEA in Ireland (though it is supposed to be coming).
[The plug that goes from the lamp into the socket is rather odd, but I guess one could just cut the wire and attach a different socket?]