C'mon, people, don't you know that what you've been taught in Science classes all your lives is WRONG???
Light bulbs don't give off photons--they absorb darkons. That's why, for example, the ends of a fluorescent bulb are dark--cause that's where the most darkons are piling up. And when they're "burned out", they're just full of darkons.
Hey, we didn't call it Phy-SUCKS for nothing.