Osram Sylvania celebrates 25th anniversary of its CFL
April 24, 2010
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.
Last modified on April 24, 2010
| CFL technical specifications - then and now | 1985 | 2010 |
| Average lifespan | 6000 hours | 12,000 hours |
| Size | 8.1 in. | 3.8 in. |
| Wattage | 7, 11, 15, 20 | 5, 10, 13, 20, 23, 26 |
| Shape | Stick | Twist |
| Colour temperature | Warm White | Warm White, Bright White, Daylight |
| Mercury | 10-15 mg | <1.5 mg |
| Price | $50.00 | $4.99 |
* Info provided by Osram Sylvania
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