The Williams Indy has warm colors on the translite, so if you go with LED's then get warm white. I would just stick with regular #47's here though. I purchased some of the wide 170 warm white and the light pattern through my backglass left swirls of light from the LED, "didn't look good". TZ yes LED and get the cool frosted ones, Big difference in colors with the Indy Jones and the TZ. The TZ has cool colors and your Indy has warm, see what I mean? #47's can be had for $1 for a box of 10.