What causes lightbulbs to burn out?
by 
wickedwillie
ANSWERS: 3
-
No lightbulb is perfect. Heat generated in the filament causes the filament to evaporate, causing thinner weaker spots to develop. Eventually, a spot will be so weak that it can't take the heat, and the light bulb "will burn out," usually the next time it's turned on. http://members.misty.com/don/bulb1.html
-
Money first as most others things to but when you pay a little more, you get the same type of bulb but build better in all facets besides burnout. A halogen bulb has the same filament as the regular bulb but instead of the near vacuum inside, halogen gas is put in it that allows the burned filaments to reattached to itself. The bulb has to burn hot to due so and so quartz is used. You get a brighter light for the same usage. If burning out bulbs is a real pain for someone, they can run them slightly in a lower voltage which combined with the practice of "dimming on" the lights rather than turning on, will extend the life many times and a slight loss of penny per watt. But running halogens this way will defeat its gas action and turn it dirty yellow.
-
Just an addition to the other good answers. My friend gets burnt out globes an tries to weld the filament back together by placing the bulb in a lamp socket and moving it around whilst switched on. It works. BUT he also re-Jetted his gas hot water service to heat the water to perfect shower temp, no hotter. He's wierd.
RELATED QUESTIONS
Copyright 2023, Wired Ivy, LLC