Originally Posted by
pe2er
I Moved away from the BPSF because it continuously fails in rain - water get inside and soaks the switch, the light goes dark.
Am now very pleased with a homebrew solution, shown below in comparison to a PBSF. Never had the opportunity to directly compare it to a Dinotte, but I estimate my light is better visible for drivers that are not directly behind my bike.
Being that the PBSF light has a very focused beam, viewing your photo, looks like the PBSF would be better suited on a more rigid surface such as on the rack so that it is not pointing downward as shown.