It’s not how long a bulb has remained lit that causes it to die. It’s the turning off and on.
Most bulbs go out at the instant they are turned on.
> It’s not how long a bulb has remained lit that causes it to die. It’s the turning off and on. <
Right. A cold light bulb filament has a low electrical resistance (compared to the same filament when warm). So the initial current through it is high. It’s that high initial jolt of current that eventually destroys the filament.