Can a light bulb light up with static hair?

Yes, a light bulb can light up using static electricity from hair, but only under specific conditions. When hair is rubbed against a material, it can build up static charge, which may create a small electric discharge. If the conditions are right, this discharge could light up a small bulb, particularly if it's a low-voltage bulb like an LED. However, this effect is generally weak and not practical for consistent lighting.