Your light bulb filled with smoke when you turned it on?

If your light bulb filled with smoke when you turned it on, it likely indicates that the bulb has burned out or that there is a short circuit within the bulb. The smoke is a sign of overheating or electrical failure, which can pose a fire hazard. It's important to immediately turn off the power to the fixture and safely replace the bulb. If the problem persists or if there are any signs of damage to the socket or wiring, consult a qualified electrician.