There are multiple suppliers for PF LED inserts available. I have used several for my Tron Pro. I just received and inserted the LED's from cometpinball.com. The 2 SMD 6.3V Supreme Brightness Non Ghosting with Faceted Lens is a must. It is far superior to other outlets. The color diffusion and brightness is unsurpassed. There is no flickering or ghosting (as I've had with other distributers). The entire insert is lighted. It's simple to order: For colored inserts, use the respective colors, except for yellow, use warm white. For white inserts, use natural white. You will not be disappointed. I'm going to there email site to order other LED's for GI lighting!