Glow in the dark o-ring fun

Just a quick update. I'm working with a new Cree LED called the "XML." It's a little bit brighter than the MCE (about 50 lumens) and it has a smaller hot spot (a little bit more throw) because the surface of the LED is smaller than the MCE. It's hard to notice the difference unless you are comparing side-by-side. However, since the LED is smaller I've discovered a fun option: glow in the dark o-rings!

No, glow technology has not progressed since the 80's so the effect is mostly for show. 

I tested this configuration in my integrating sphere (it measures brightness) and there is no perceptible loss of performance by putting the o-ring around the LED. This will not work with the MCE since that LED fills the entire opening of the reflector.

When ordering, let me know if this is an option you are interested in. It's not officially available on my store yet but...I know a guy that can hook you up.