 Okay, here's a locomotive that has a tsunami installed in it. Yeah, I know it's not prototypical, but I've set it up to have the Mars light operation on the headlight. It has a 5mm sunny white LED for a headlight. And the scene is being lit with blue-white LEDs in a building just off to the left of the locomotive there. Now, when you have the locomotive set up just as it comes, you say, okay, I want the Mars light effect out of this decoder. This is what you're going to get. But if you come back and you say, you know, this is an LED, here's the effect you get. You see the difference, the very sharp cutoff. Now Mars light swings around and sweeps back and forth across the track. And so you'll see the effect of the light swinging back and forth is much more pronounced when you tell it that it's really an LED out there instead of just an incandescent light. Have fun. That's what it's all about.