Lights giving way to LEDs by 2010, says iSuppli

How long does it take to change a light bulb? Research firm iSuppli says 131 years: that's the number of years between Edison's invention of the light bulb in 1879 and 2010, when light emitting diodes will start being used generally as a light bulb substitute.

The high brightness and low energy consumption of LEDs is leading to demand in limited markets, but the high costs will keep them in limited distribution for a few years.

The market for LEDs for general illumination will expand to $875 million in 2010, rising at 52 percent a year from $94 million in 2004, the firm said. Lighting was a $12 billion market.

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