Becnhmarks of Innovation

[tw]

Originally posted by Svartalf
Been watching it for years. The LED's about to take off- but it's just really in it's infancy proper right now.

LEDs for all but white indicator lamps were cost effective by 1990. LEDs for red traffic lights were cost effective by 1995 - especially when you consider cost of replacing incandescent bulbs, and moreso when considering losses associated with a burned out red traffic lights.

White LED room lighting is not yet practical. However either is room lighting using incandescent bulbs. Even Halogen bulbs were more cost effective in most situations.

The point is that LEDs have been a practical alternative to most indicator lamps and yet five years later still were not in all products. Also white LEDs were duplicated by combinations of red, green, and yellow leds. The cost of building LED replacements for any indicator were quite low even in the 1990s - especially if maintenance, energy costs, and reliability were taken into account.

For those not familiar with suppliers of these products for almost twenty years, see LEDtronics and (if I remember the name correctly - his brother) Diallight.