I just got in some comparison samples of the new BriteCaps EVO LEDs for pop bumpers from Pinball Life company. Warm White is a new option now on their web site and it is really interesting to see these side by side. Digital cameras make it difficult to capture the true colors. But you can still see what a cool white vs. warm white LED does for example, on the pictured "purple" pop bumper cap. If my game has "old timey" styling to it, I'm definitely going to use warm whites.