Now this is clever.........

[wombat2u2004]

...after dark, LOL. They don't create light, they're just a a very efficient skylight. Still pretty cool idea, although I'd be worried about leakage eventually.

What ??? He told me they would work forever. I want my money back !!!!

[IRescue452]

That's clever. They could also use more reflective surfaces in their homes, like mirrors or aluminum foil, to bounce the light around even more in the rooms. Too bad it doesn't work after dark. I couldn't live like that though, I can't see a thing without incandescent light or uv light. I tend to walk right up against the wall in buildings with only flourescent light because I can't see good.

[Taz_Zoee]

I think that's great!! And they seem to be cheap enough that if they do have to be replaced it would still be cheaper than using electricity.