Have fun with the fretglow kits....
I used them once but found the optic fiber to be on the thick side, which meant removing a lot of meat from the fretboard. Totally doable but a right royal pain in the qoight.
I now use TV/ sound system optic fiber, its only about .5mm and requires a lot less removal of timber to fit it in.
It is really important to bundle the ends of the fibers together and epoxy them into a piece of tubing.
This makes it a heck of a lot easier to cut the ends flush and get a really nice polish on them.