Thanks for this. I tried it but the lights became extremely dulled down. I had to pump up their intensity, and even then it did not look very bright.
If you want an idea of what I'm suggesting, look at the le_light_fire object in the example project. There is a red glow on the ground at the center of the light object, but as it moves outwardly, the glow turns white.
I'm also wondering if this is an issue with the underlying material map that is being used. When I use the same light on another more metal material map the white ring disappears.