Quoted from btw75:We were thinking that led would not work well with the infinity lighting, but we could be pursuaded differently.
Quoted from Riptor:I thought the same thing. I tried white led, looked ok. Switched to blue, looks and works great.
Xenon is not a great example for infinity effect due to the amount of artwork/minimal mirroring on the inner glass. I'm sure they used the convex mirrors in the corners to compensate for this. LED works just as well as incandescents and I felt the Comet warm white 10mm bullet bulbs with the taller domes looked best.
Quoted from bobukcat:I personally prefer incandescent bulbs in Xenon except for in the pop bumpers where I like the way a warm white LED makes the caps look and doesn't blow out from getting banged around.
The warm whites in the pops look fantastic. Comet retros in the inserts also look fantastic. I used retros in the GI when I did my playfield swap, but have since switched to clear sunlight and am happier.
https://pinside.com/pinball/forum/topic/xenon-with-comet-leds-and-custom-upgrades
Xenon is a really dark machine. I'm surprised by how few GI bulbs it has. I would suggest using 44s if you're going to keep incandescents in the GI.