bike light

I arrived at the re-Cycles shop near closing time tonight and one of the guys says "hey Mark, someone dropped this off for you".

A curious looking thing, with an obvious seatpost clamp at one end. But what exactly IS it?

Those bumps on the thicker section look to be battery compartments:

Oh, it opens up...

To reveal a truly geeky thing:

And it lights up!!!

(It takes eight AA batteries, and a few of mine need recharging)

This thing is retro-geeky beyond words. I don't know if I actually want to fit it to any of my bikes, and most of you know I'm not at all shy when it comes to weird bikey things. Hmm...

Thanks (I think) to William Watt for dropping this off.