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Jeff Liebermann Jeff Liebermann is offline
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Default Using mobile phone as an internet radio

On Tue, 2 Oct 2012 19:14:45 -0700 (PDT), "hr(bob) "
wrote:

If you cycle a
bulb on and off every few seconds, the total on time before the bulb
fails will be only a few hundered hours for a 1000 hour rated bulb,


Every wonder where the 1000 hrs came from?
http://en.wikipedia.org/wiki/Phoebus_cartel
http://en.wikipedia.org/wiki/Planned_obsolescence
If you stress a 1000 hr incandescent bulb, the lifetime will be even
less.

It also applies to CFL bulbs:
http://www.telegraph.co.uk/earth/environment/6122459/Lifespan-of-energy-saving-bulbs-reduced-by-repeated-switching.html
The lifespan of energy-saving light bulbs can be reduced
by up to 85 per cent if they are switched off and on too often...

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Jeff Liebermann

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