Lighting is hot. I'd love to have lights that weren't also little heaters. Or, if the cooling effect is big enough - imagine solid state cooling on devices. Who

Lighting is hot. I'd love to have lights that weren't also little heaters. Or, if the cooling effect is big enough - imagine solid state cooling on devices. Who needs a fan when you can have a little cooling light? I doubt that they'll be able to scale this up too much though, since it probably relies on an effect that only occurs below a certain threshold.