Mr Beams: White Light, No Heat

Yes, if you got out your slide rule and heat-o-scope, you'd find these LEDs released teeny weeny amounts of heat energy. But if you just slap your hand on the bulb? You ain't gonna feel nothin'. We're gonna call that "no heat" for our purposes. Fair enough?

Ends on May 20 at 9AM CT

About Science

Hey, it's good to know the reality, even if it doesn't matter. That's what science is here for. Keepin' us honest. Otherwise, we'd have to write A TINY FAIRY LIVES IN EACH BULB and Neil Gaiman's working that side of the street right now.