@Falchoon - my experience with the cygolite is that it's ok until it rains -
http://www.bikeforums.net/showthread...golite-ggrrrrr
the only problems i've had with the PBSF-turbo were teething problems with the 1st batch (turning off on bumps). the 2nd batch is all sorted, and if you're having problems, PB should do what's reasonable to keep you happy, unlike my experience with cygolite.