Even though it goes against common wisdom and experience, I've removed (acetone) the glowing numerals from both of my Gra-Lab timers.

When I built my darkroom I made the decision to make it honest-to-goodness dark. Meaning, a complete absence of light. Meaning, I can stand in there for hours and still not see a single photon. No glow tapes. No LED indicators. No lighted switches. No light leaks. Nothing. The door frame was selected because it hermetically seals like a fridge. The counters all have generously rounded corners to prevent injury. And I can take my sweet time loading or unloading 8x10 holders with hundreds of dollars worth of sheet film laying about and never have to worry at all.

Call it sensory-depravation insanity-inducing dark.

Works for me...