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KB2VXA > ENERGY 02.12.08 01:39l 30 Lines 1494 Bytes #999 (0) @ WW
BID : 49941_VK2TV
Read: GUEST OE7FMI
Subj: Re: G4UEQ > NRG saving lamps
Path: DB0FHN<DB0FOR<DB0MRW<DB0ERF<OK0NAG<OK0PPL<DB0RES<DK0WUE<7M3TJZ<F6CDD<
F6BVP<VK2TV
Sent: 081202/0026Z @:VK2TV.#MNC.NSW.AUS.OC #:49941 [Kempsey, QF68JX] $:49941_VK
From: KB2VXA@VK2TV.#MNC.NSW.AUS.OC
To : ENERGY@WW
Never mind what your eyes tell you, it's a logarithmic F scale, you have
probably seen the F stop adjustment on cameras. Each stop is twice or
half the light of the one next to it so the difference in light observed
between the wattage ratings is nearly imperceptible unless there is a
great change. You'll notice a far greater difference with spectrum output
than average light measured in lumens, there you go by the Kelvin scale.
It gets a bit complicated so I refer you to the on line Wikipedia where
there is an excellent piece on CFLs that goes into great detail. There
you'll find information on rated life as well and something even the
Energy Star site won't tell you about, warmup time and why they last
longer when left on all the time vs. the other end of the scale, short
period intermittent use such as in the bathroom. Funny how it refers to
Energy Star recommending at least 15 minutes use per cycle when no such
thing appears on the web site, very little information outside the
political actually. If nothing else it jives with what I have observed,
they give better light, have fewer warm up problems and contain far less
mercury than earlier versions so stop complaing out there, when
replacement time comes around you'll have a better bulb and less to moan
about.
73 de Warren
Station powered by JCP&L atomic energy, operator powered by natural gas.
Message timed by NIST: 00:26 on 2008-Dec-02 GMT
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