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From: sec@cs.umn.edu (Stephen E. Collins)
Newsgroups: ca.environment,sci.electronics,misc.consumers.house
Subject: Re: Compact Fluorescent Varieties (Was Re: Recycling LIGHT BULBS?
Message-ID: <1991Jan16.161148.3458@cs.umn.edu>
Date: 16 Jan 91 16:11:48 GMT
References: <1991Jan7.072625.27315@informix.com> <820002@hpcc01.HP.COM> <1991Jan9.171802.509@amd.com> <10215@pasteur.Berkeley.EDU>
Organization: University of Minnesota, Minneapolis, CSci dept.
Lines: 20

In <10215@pasteur.Berkeley.EDU> charless@cory.Berkeley.EDU (Charles R. Sullivan) writes:
>>I have four Q-lites in my bathroom. I used to object to CFs because
>>they weren't bright enough (you can't get them in a 100 watt
>>flavor) but I think I have solved that problem now with my 300
>>watts (equivalent) of light.

A number of others have made similar comparisons.  Light is measured in
lumens, not watts.  Comparing watts will give you absolutely no idea
of the difference in light output.  Even with the same technology, it
is a poor measure:  two sixty-watt standard light bulbs (120 watts)
won't give you nearly as much light as a single 100-watt standard
light bulb.  When you look at different technologies, the difference
is even greater (e.g., hologen or fluorescent).

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Stephen E. Collins
University of Minnesota
sec@boombox.micro.umn.edu