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To: DBrow; Graybeard58
The cfl inverters have a power factor of about >60% and
(due to harmonic distortion of line current) an
efficiency of less than 75%. making a 20 watt ccfl bulb consume about 40 watts.
The pwm chips and semi’s use trichlor in wafer processing and are doped with gallium, thallium and arsenic.

Combined with the mercury in the bulbs (necessary for starting) they are an environmental mess.
Their electronics run extremely hot and cannot be placed
in many enclosed areas or used in cold places such as outdoors in the winter.

Generally they require more energy to manufacture than they save.

They are dumped here on the market by communist China.

No free lunch here.


118 posted on 11/11/2007 9:02:46 PM PST by DaveTesla (You can fool some of the people some of the time......)
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To: DaveTesla
copied from "flourescent bulb news. com"

[QUOTE]National News

Fluorescent Bulb Break Creates Costly Hassle: On March 13, Brandy Bridges was installing one of the spiral-shaped light bulbs in her 7-year-old daughter’s bedroom. Suddenly, the bulb plummeted to the floor, breaking on the shag carpet. Bridges, who was wary of the dangers of cleaning up a fluorescent bulb, called The Home Depot where she purchased them. She was told that the bulbs had mercury in them and that she should not vacuum the area where the bulb had broken. Bridges was directed to call the Poison Control hotline. Poison Control directed her to the Maine Center for Disease Control and Prevention and the Department of Environmental Protection. Upon reaching the DEP the next day, the agency offered to send a specialist out to Bridges’ house to test the air levels. Bridges was told by the specialist not to clean up the bulb and mercury powder by herself. He recommended the Clean Harbors Environmental Services branch in Hampden. Clean Harbors gave Bridges a low-ball estimate of $2,000, based on what she described, to clean up the room properly. The work entailed removing anything with levels greater than 300 ng/m3, including the carpeting. Officials have said that Bridges has little to worry about and she could easily clean up the bulbs by hand. 04/12 The Ellsworth American [/QUOTE]

171 posted on 11/11/2007 10:58:55 PM PST by KTM rider (..left or right,......... socialist, or socialist light ?)
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