they're fog lights and are an option on the Adventure (although I'm pretty sure they could be ordered for a GS). Good, but hardly worth the £200+ price tag IMHO (I've got them on my bike)
That's for the whole kit (I think, I didn't pay for it ). The mounts are pretty odd, you might have a job getting any other light to fit - have a look at one next time you get a chance (I don't think a photo would help, you probably need to look at the mount yourself - plus, of course, I haven'tgot a photo! )
They'd probably know - looks like I got a bigger bargain than I thought At that price, though, I really wouldn't bother - the mounts on the lamps themselves are pretty fragile (although Adventure crash bars do protect them [don't ask]) and I'm sure that Halfords & Hella will give you better value for money...