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by electrons from King of Prussia

Last Post 19 days, 8 hours Ago


CFL light bulbs last 10,000 hours?
Jul 15, 2008 | 12:53 PM
Category: News
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I was walking through Home Depot and saw a CFL light bulb that claimed "Lasts 10,000 hours".  I am a bit skeptical. 

I plan to buy a few and put them on a programmable timer I made.  It'll switch each bulb on for 1/2 hour, then turn each on off for 5 minutes.  It'll cycle the bulbs non-stop with this timing pattern until they burn out.  A second batch will run non-stop with no power cycling.  We'll see if these bulbs stand up to their claim.  Feel free to place your bets. 

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Member Comments Total Comments: 7
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movealready read my blog
Jul 15, 2008 | 3:43 PM

Already been done, check out Mythbusters . If I remember correctly, the bulbs did a fair job. Let me know If I helped save you time and/or money
ibejim read my blog view my photos
Jul 15, 2008 | 7:58 PM

I'll be interested to see your results.

Better get a hazmat suit in case you break one. :)
electrons read my blog
Jul 15, 2008 | 9:21 PM

But did Mythbusters cycle power on them or just leave them on constant? One thing I do not like already is the amount of harmful harmonics they put out on the electrical lines. The bulbs actually put lots of "electronic noise" out on the power lines. This is not noise you hear, but noise that looks like spikes on a scope.
It seems as if they will make your house power what is called "dirty power". This must be why they claim they can cause interference with radios and TV's.... It is all making sense now.
movealready read my blog
Jul 16, 2008 | 7:20 AM

If I remember correctly, they did both. I'd reseach it for you, but The kids have me crazy busy. A quick search ought to reveal more insight.
movealready read my blog
Jul 16, 2008 | 7:27 AM

Here you go..
http://kwc.org/mythbusters/2006/12/episode_69_22000_foo
t_fall_lig.html

The science is fuzzy, and the data is not explained very clearly. Have at it.
electrons read my blog
Jul 16, 2008 | 7:59 AM

Thanks, Move.
Quagmire read my blog
Jul 25, 2008 | 10:57 AM

Don't do it in your house, like ibejim notes.
They contain mercury, and breakage does create a hazardous situation.

http://epa.gov/mercury/spills/index.htm#fluorescent


Will be looking for the results in Oct. 2009.
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electrons

Im a busy electrical engineer.

Member Since: 1/8/2007


 

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