formulaw
25-30 years.
On average, about 80-90
Ferret* seven to nine years.
we use the light bulb in every day life
The mood light will last as long as the bulbs life, which has a lifetime of an average household light bulb. once the bulb burns out, one must replace the bulb with another mood light bulb.
hu
If well lubricated and not abused, it should last the life of the engine 100,000+miles.
How old will you be when and where? The age adjusted life expectance depends also on you life style and other factors.
Answer Actually dimmer switches extend the life of a light bulb, especially if you dim them often.
That can vary A LOT, depending on the specific technology used (the type of light bulb), and the brand.
Yes, we could still live without the light bulb as there are alternative sources of light such as candles, oil lamps, and natural daylight. The light bulb has made life more convenient and efficient, but it is not a necessity for survival.
it lets up see