Lights!
Yay, hippies!
No, actually this is for terraining purposes ONLY. What they do is that they create a certain light at all nearby doodads/destructables. This can be good for creating atmospheres.
This is called an 'omni'. Those models are extremely simple, made in about 10 min, but a lot of people may have use of it, and I don't think there's enough out there. (There's about 4 in the UTM)
So, screenshots? Not necessary. Or shouldn't be.
I think the description is enough
If it's not, check it out for yourself
EDIT: added a screenshot, look at the green light.
EDIT: added another screenshot, so you can see the difference with and without light.
So, the download? Here: (1kb for each model, about 12 models I think)