Originally Posted by
mmeiser
Personally I just go straight for the plastic baggie and rubber band. It's 100% effective and the only negative is your light doesn't look as pretty. LOL.
A baggie may also affect the light output/dispersion though probably very minimally.
I have one of the early models which were very prone to the light unit escaping from the bracket, so mine have some PVC tape over the seam to hold it together. This must help with waterproofing because they have worked without a problem for years on the seat stay.
They play back up to a PDW Danger Zone now though (which means I moved them to the right seat stay).