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Compact fluorescent bulb burns PNNL staff
PNNL ^ | 18, 2013 | Staff

Posted on 11/19/2013 7:04:01 PM PST by Rabin

A PNNL staff member removed a burned-out compact piggy tail light bulb in his home and replaced it with a new one. When he turned on the switch, only a portion of the new bulb lit up. Assuming it was defective, he turned off the switch to remove it. Grasping the bulb, he felt a pain as if he had been cut by glass, and found a small, burn. Removing the bulb, he noticed the plastic base (see pix) was blackened at the point where it connected to the mercury tube.

(Excerpt) Read more at msa.hanford.gov ...


TOPICS: Miscellaneous
KEYWORDS: cfl; fluorescent; lightbulb; mercury
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To: ClearCase_guy

Get LED bulbs. They DO last, and they use even less energy than CFL.


21 posted on 11/19/2013 8:18:56 PM PST by FredZarguna (The sequel, thoroughly pointless, derivative, and boring was like all James Cameron "films.")
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To: ClearCase_guy
The best thing about CF bulbs? "They last 15 times as long a incandescents!!!" The worst thing about CF bulbs? Somehow, I find myself replacing them about every 6 months.

You have to use them right, I only use them places where the lights will not be turned on and off relatively quickly (bathrooms), especially hard to reach places. My bulbs consistently last a few years each.

22 posted on 11/19/2013 8:42:17 PM PST by Paradox (Unexpected things coming for the next few years.)
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To: FredZarguna
Get LED bulbs. They DO last, and they use even less energy than CFL.

They have finally gotten down to the price point where I am considering them.. Sadly, they aren't THAT much more efficient than CFL's. I was hoping for a reduction on the level between incandescent and CFL (Factor of 4 or so).

23 posted on 11/19/2013 8:44:22 PM PST by Paradox (Unexpected things coming for the next few years.)
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To: null and void
LED lamps are rated for 25,000 hours.

Build quality does vary.

Teardown of a couple of cheapo Chinese LED lamps: www.youtube.com/watch?v=BKUEgnLpeQo

24 posted on 11/19/2013 8:55:32 PM PST by cynwoody
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To: cynwoody

I buy Cree lamps, made in North Carolina.

Sure wish they’d hire me...


25 posted on 11/19/2013 9:14:05 PM PST by null and void (I'm betting on an Obama Trifecta: A Nobel Peace Prize, an Impeachment, AND a War Crimes Trial...)
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To: cynwoody

My best flashlight is a 12 LED bulb type and it is bright and has lasted about 10 or 11 years. It is my go to light when all the others are dim and/or burnout. It always works. And always has a very bright beam. Guess I was lucky.


26 posted on 11/19/2013 9:21:43 PM PST by JSteff (It was ALL about SCOTUS.. We are DOOMED for several generations. . Who cares? The Dem's do & voted!)
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To: null and void
made in North Carolina... Sure wish they’d hire me...

But the commute's a killer...

27 posted on 11/19/2013 9:47:13 PM PST by NoCmpromiz (John 14:6 is a non-pluralistic comment.)
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To: Rabin

I’ve had two fires caused by CFLs. They are very dangerous.


28 posted on 11/19/2013 9:49:13 PM PST by gitmo (If your theology doesn't become your biography it's useless.)
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To: NoCmpromiz
I suppose I could be persuaded to move out of California...
29 posted on 11/19/2013 10:00:26 PM PST by null and void (I'm betting on an Obama Trifecta: A Nobel Peace Prize, an Impeachment, AND a War Crimes Trial...)
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To: Paradox
I have a supposedly 60W equivalent LED bulb behind me that's actually brighter than the 100W CFL's I used to use.

The A19 is 7W. The 100W CFL equivalent is 26W; that's pretty close to a factor of 4. Add to that the fact that the LED bulb will actually outlast its warranty (in 5 years I have never replaced one) and the CFL bulb will be lucky to get to 25% of its imaginary lifetime and it's a no-brainer.

It's especially pronounced in vanity lighting. We went from 3 x 45W teardrop bulbs to 3 x 2W LED's in the bathroom fixture, and now have more light, and more natural light. Many LED's can also be adjusted with a rheostat, a feature you will not find in CFL at any price.

30 posted on 11/19/2013 10:09:53 PM PST by FredZarguna (The sequel, thoroughly pointless, derivative, and boring was like all James Cameron "films.")
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To: null and void
I buy Cree lamps, made in North Carolina.

It's interesting that they offer both a 9.5w dimmable bulb putting out 800 lumens of 2700K light and a 13.5w dimmable bulb also putting out 800 lumens of 2700K light. Same lifetime and warranty.

But why would you ever buy the 13.5w model? 84 lumens per watt vs 59, but otherwise the same!

Comparison by Home Depot.

Hmm. Looking at the full descriptions, I see the 13.5w model claims "Neodymium glass augments LED light quality through spectral notching". Maybe that's it. The filtered light is easier on the eyes, but the lamp has to be stronger to overcome the envelope losses to still put out 800 lumens?

31 posted on 11/19/2013 10:11:42 PM PST by cynwoody
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To: Rabin

bttt


32 posted on 11/19/2013 10:18:47 PM PST by TEXOKIE (We must surrender only to our Holy God and never to the evil that has befallen us.)
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To: Rabin
Incandescents don't do this.


33 posted on 11/19/2013 10:23:27 PM PST by clearcarbon
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To: cynwoody

Yes, I was able to find a data sheet that shows it takes a big bite out of the yellow, which is near the peak sensitivity of the human eye. That increases the relative amount of red perceived, giving a warmer light. I’d guess it gives a better red-green color differentiation s well.

www.cree.com/~/media/Files/Cree/Lighting/Lamps/Bulb/TWseriesFAQ.pdf


34 posted on 11/19/2013 10:30:02 PM PST by null and void (I'm betting on an Obama Trifecta: A Nobel Peace Prize, an Impeachment, AND a War Crimes Trial...)
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To: null and void
Interesting. Thanks.

The 42% higher energy consumption must be due to the Neodymium. I guess I'll have to try out one of each to see if the improved CRI makes a worthwhile difference.

35 posted on 11/19/2013 11:50:17 PM PST by cynwoody
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To: Rabin
They (the employee, the company, etc.) are probably glad this happened at the employee's home rather than on the job. It would have meant tons of time and effort going over and revising protocol for changing a light bulb - seriously.

Although I am sure that some effort will be given on this matter (hence the article). Back during the war when Hanford was creating the material for the first atomic bombs, all of the housing was governmental, and maintenance guys did all of this sort of work - changing light bulbs, plumbing, cleaning, etc. Mainly to snoop on the workers to make sure they didn't bring anything home from work (files, papers, etc.).

36 posted on 11/20/2013 12:15:24 AM PST by 21twelve (http://www.freerepublic.com/focus/f-news/2185147/posts 2013 is 1933 REBORN)
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To: null and void

Perhaps the LEDs. But the electronics behind the LEDs still often have cheap Chinese capacitors, so they don’t last anything like that long.


37 posted on 11/20/2013 12:22:40 AM PST by FreedomPoster (Islam delenda est)
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To: clearcarbon

http://www.snopes.com/inboxer/household/cflbulb.asp


38 posted on 11/20/2013 1:16:37 AM PST by Fresh Wind (The last remnants of the Old Republic have been swept away.)
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To: logi_cal869

When I was a kid, we used to play with mercury. It’s an interesting liquid.


39 posted on 11/20/2013 2:59:05 AM PST by Star Traveler (Remember to keep the Messiah of Israel in the One-World Government that we look forward to coming)
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To: Star Traveler
I remember in sixth grade finding Mercury on the stage at school. I scooped it up to play with later.
Amazing, no EPA to call, the school didn't shut down, and the Gov didn't make a speech.
I'll even bet the Mayor had a nice dinner that night without worrying that mercury
would end life on the planet. And I didn't die.
40 posted on 11/20/2013 3:25:27 AM PST by MaxMax (Pay Attention and you'll be pissed off too! FIRE BOEHNER, NOW!)
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