Quoted from PinCrush:I use these on machines that are especially prone to strobing:
http://www.pinballcenter.eu/english/product-informations/noflix-advantages/pinball-led-noflix.html
Expensive, but I've had good experience with them. My Wh2o is fine with them (was not fine with regular LEDs).
These are really cool.
I have a few teal ones. They still glow after you take them out. Strange.