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Posted to rec.audio.tech,sci.electronics.basics,sci.electronics.components,sci.electronics.repair,sci.engr.television.advanced
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CFL's
"Mr.T" wrote:
"Eeyore" wrote
You need at least a 23W CFL to match the output of a 100W incandescent.
Ony for a good one at the start of it's life. They get even dimmer with use
though.
The table here...
http://en.wikipedia.org/wiki/Incandescent_lamp#Power
Shows a 100W incandescent providing 1700 lumens.
In comparison some new CFLs I have claim only 1100 lumens for an 18W and
1200 lumens for a 20W.
The 11W CFLs claim 600 lumens and that makes them only slightly brighter
than a standard 40W bulb instead of equivalent to a 60W as claimed.
I do wish they wouldn't make these silly claims for them.
Me too, and those equally silly 8,000 hour claims.
I haven't been counting the precise hours but the ones I've had have lasted a
long, long time.
Graham
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