Why does a refrigerator light last so long?
The life of an incandescent bulb depends almost exclusively on how many hours its filament has been hot. Since the bulb in a refrigerator is only on for a few minutes a day, it lasts for many years.
The life of an incandescent bulb depends almost exclusively on how many hours its filament has been hot. Since the bulb in a refrigerator is only on for a few minutes a day, it lasts for many years.