They are much smaller than conventional bulbs and allow Mitsubishi to do away with a cooling fan.

Its estimated lifespan of 50,000 hours is about 25 times that of a conventional bulb.

The conventional bulbs, however, are much larger and emit an unpleasant blue-tinged light.

LEDs consume one fifth of the energy of conventional bulbs (incandescent) and last one hundred times longer.

Also LEDs have been used replacing the conventional bulbs.

Intersource Technologies, of California, claim that the bulb uses only a quarter as much energy as conventional bulbs.

Incandescent Illumination - conventional light bulbs.

Years ago, these efficient light bulbs cost up to 10 times as much as conventional incandescent bulbs, and their light had a somewhat different hue.

LED brake lights illuminate faster than conventional bulbs.

In conventional incandescent bulbs, the light-production process involves generating a lot of heat (the filament must be warmed).