[url= http://www.reelight.com/Default.aspx?ID=50 ]Reelight website[/url]
Cycling Plus reviewed these a couple of months ago, not cheap (£50ish) but they seem fairly good & battery free, and a straightforward rear light alternative to a rear dynamo light.
Already got a front dynamo on my do everything road bike, and would like to find something similar for the rear, but the hub dynamo is a Shimano model that doesn't have the output for a rear light (2.4v rather than 3v).
Independent user opinion of a Reelight would be appreciated.
I used a similar rear light from the US, available in the 90s IIRC, did well but I think the water got to it.
Price has me sucking my teeth though...
Precisely why I'd be keen to get an opinion from someone using it daily, rather than C+s rather short review & mediocre 6/10 - ever noticed how many C+ reviews achieve 6/10?