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Osram Sylvania celebrates 25th anniversary of its CFL


April 24, 2010
By Anthony Capkun

Osram Sylvania is marking the 25th anniversary of its first modern, compact fluorescent (CFL) light bulb that screwed in like an incandescent and featured an integrated electronic ballast.

According to Wikipedia, the modern CFL was invented by Edward E. Hammer,
an engineer with General Electric, in response to the 1973 oil crisis.
In 1980, Philips introduced its model SL—a screw-in lamp with integral
ballast. Then, in 1985, Osram started selling its model EL lamp.

CFL technical specifications –
then and now
19852010
Average lifespan6000 hours12,000 hours
Size8.1 in. 3.8 in.
Wattage7, 11, 15, 205, 10, 13, 20, 23, 26
ShapeStickTwist
Colour temperatureWarm WhiteWarm White, Bright White, Daylight
Mercury10-15 mg<1.5 mg
Price$50.00$4.99

 * Info provided by Osram Sylvania