Upon a dealer buyout of remaining stock, I have built several color change grandes.
They are RF remote controlled and use a independant heating element on a dimmer to heat the lava.
Here are just some of the variations of colors available from the LED RGB ring. (disregard missing sectors)
You can Strobe them, Color Phase, or Jump to next color. You also have the option to choose a static color, etc.
Lava is blacklight sensitive as well.
PM me for pricing while i have a few left