The Engineer

GE introduces LED light bulb

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General Electric has taken the wraps off a 40W LED light bulb that it expects to make available later this year or early 2011.

GE Lighting’s new 450 lumen LED bulb is expected to consume just 9W, provide a 77 per cent energy savings and produce nearly the same light output as a 40W incandescent bulb.

The new bulb is expected to have a 25,000-hour rated life. If used for four hours per day, it is expected to last 17 years - 25 times longer than a 40W incandescent or halogen bulb and more than three times longer than a standard 8,000-hour rated life Compact Fluorescent Lamp (CFL).

Because it is a solid-state device it has no filament that can break and, unlike a fluorescent bulb, contains no mercury.

Although retailers will set the pricing for the bulb, GE expects that it will sell between $40 to $50 (£26 to £33).

GE will put prototypes of the bulb - outfitted with Cree XLamp XP-G LEDs - on display at two upcoming trade shows: Light+Building 2010 in Frankfurt, Germany, and LightFair 2010 in Las Vegas, Nevada.

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