I now got the two-lamp version of the Mighty Bright portable lights. And it's everything I said about the normal version plus very impressive light output. I would say that it would work for anything I imagine one might do within arm's reach.
Oh, and the "bulbs" are in the same small head, it's equally compact. And you can select to use just one of them if desired.
Update: Oh, just fine: I bought them from the US because I couldn't find the double-bulb ones on Amazon UK. But now I can, and it seems they have been there for a while... Dunno what happened there. :-)
Just wanted to say how surprisingly pleased I am with this little product. It's just outstanding.