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VK2TV > ENERGY 29.11.08 00:01l 54 Lines 2419 Bytes #999 (0) @ WW
BID : 49762_VK2TV
Read: GUEST OE7FMI
Subj: Re:Energy saving lamps.
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Sent: 081128/2245Z @:VK2TV.#MNC.NSW.AUS.OC #:49699 [Kempsey, QF68JX] $:49762_VK
From: VK2TV@VK2TV.#MNC.NSW.AUS.OC
To : ENERGY@WW
# Generated by: TstHWin v2.21b - Registered to VK2TV
# On : 11/29/2008 9:44:22 A
# UTC: 11/28/2008 22:44:22
>From: VK6BE@VK2TV.#MNC.NSW.AUS.OC
>To : ENERGY@WW
>
>
>Our current Minister for This and That including conservation was
>promising to pass a law banning the use of incandescent lamps in favour of
>the fluorescent energy saving lamps. I have put in these lamps in the
That's why he's a minister and not a "normal" resident of Oz.
I've been using a tri-phosphor (now quad-phosphor) circular fluorescent
lamp in the shack for 14 years. It provides exceptionally good, white
light. The tubes are rated at 9000 hours average but the best I've ever
done is about two-thirds of that. That light can easily be on for 15 hours
a day.
Outside, around the verandah, I have eight light fittings switched in two
groups of four. The front four are on a motion sensor, the back four are
not. I installed CFL lamps in the back four fittings about 18 months ago,
and the front four about a year ago. Apart from a delay in reaching full
brilliance, they're great. As for the delay, when you're in a rural area
where streetlight is just a word, and the night can be as black as the
inside of a cow, even a candle looks bright!
In the kitchen/family room I have two, three lamp spotlight fittings. These
were originally fitted with 80W incandescant reflector lamps. The kitchen
light is on for lengthy periods. Due to the heat produced the fitting
eventually cooked itself to death (after 13 years). I replaced the fitting
with a similar fitting and decided to use CFL reflector lamps instead of
incandescants. Once the lights have "warmed" up their light output is
terrific and of good colour temperature. They also run cool.
However, the warm up period is about two to three minutes, and during the
first thirty seconds they resemble a 12v bulb with a 1.5v battery! They
would be totally unacceptable in a motion detector activated security
spotlight application. A bit like whispering to the intruder that you're
going to call for help before you actually yell.
It's horses for courses and the incandescant lamp has some years to live
yet, but I have no doubt that as technology inproves, alternatives will
have more appeal in currently unacceptable circumstances. LED fittings are
emerging as a promising alternative for some applications.
Cheers ... Ray vk2tv
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