Path: utzoo!dptcdc!jarvis.csri.toronto.edu!mailrus!purdue!haven!uvaarpa!hudson!smf7s
From: smf7s@hudson.acc.virginia.edu (friedman steven michael)
Newsgroups: sci.electronics
Subject: fluorescent vs. incandescent
Keywords: none
Message-ID: <1369@hudson.acc.virginia.edu>
Date: 16 Apr 89 18:53:04 GMT
Distribution: usa
Organization: University of Virginia
Lines: 15


	I know that fluorescent lights are more efficient than
incandescent lights, but use a lot of power during start-up; whereas
it costs nothing to flip an incandescent bulb on and off, but is more
expensive to run over time.  My question is where do the efficiency
curves meet?  That is, how long does one need to keep a light on
continuously before it becomes more efficient to switch from
incandescent to fluorescent? (Obviously the functions would cross in
different places, depending on wattage).

				Steven M Friedman

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