jtr1962
Flashaholic
NonSenCe,
They could make incandescent bulbs which last 50 years but like I said it makes no sense. You'll end up spending far more on electricity for any given light level (because dimmer, longer lasting bulbs are less efficient) than you'll save by not having to replace the lamp. This isn't some kind of planned obsolescence but simple economics. Fluorescents and LEDs ARE in fact designed to last longer than incandescents simply because there aren't any inherent tradeoffs associated with increasing lifespan.
They could make incandescent bulbs which last 50 years but like I said it makes no sense. You'll end up spending far more on electricity for any given light level (because dimmer, longer lasting bulbs are less efficient) than you'll save by not having to replace the lamp. This isn't some kind of planned obsolescence but simple economics. Fluorescents and LEDs ARE in fact designed to last longer than incandescents simply because there aren't any inherent tradeoffs associated with increasing lifespan.