Originally Posted by
econprofessor
I plan on using cable ties to attach it to the frame and racks (my front light is on a rack as is my rear light). Still might be happier with some kind of housing, especially for the front light, as the leads are hard-wired into the light.
In practice, you're extremely unlikely to have any issues with the wiring getting damaged. Many ( perhaps even most ) dyno lights have hard-wired leads, and if it was a significant problem I would expect to see lots of complaints about it.