That is a good observation as to the fact that a small red light turning on won't attract as much attention as I want. Still,any red light is better than no light.

I am in the midst of modding an inexpensive L.E.D. flashlight into a headlight and
an L.E.D. closet light into a rear light. It will take more effort to make them than
it would to buy them but I am a retired fire alarm tech' and love to sodder stuff up.

Thanks for the info' on where to buy parts.
A relatively weatherproof micro switch is hard to make.

As suggested the brake light is more a predilection than something useful.
Unless I mount a military grade dazzler as my brake light.