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| Re: Interesting article on LED's [message #115252 is a reply to message #115192] |
Wed, 16 February 2011 13:32   |
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I heard a commentary from a UC IRVINE professor yesterday on radio show. He says that, in running some tests, he found more than trace amounts of lead, mercury, arsenic, phosphorous and some other bad things in LED lights. He feels they could lead to problems if many of them wind up in city dumps and leach into the ground water. He also commented about the dangers of mercury in broken fluorescent lamps, if not disposed of properly. I'm not particularly worried about all this, but thought it is interesting.
geo groth '73 260 Sequoia
Carson City Nevada 89703
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| Re: Interesting article on LED's [message #115254 is a reply to message #115150] |
Wed, 16 February 2011 14:03 |
bwevers
Messages: 597
Registered: October 2010
Location: San Jose
Karma: 5
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CREE is a company manufacturing LEDs.
According to the CREE website, there are no detectable heavy metals contained in their LEDs. They are ROHS & Halogen free.
So I would say the comment about toxic material in landfills is inaccurate.
see the report:
www.cree.com/environmentalLED%20Component%20Product%20Data.xls
Bill Wevers GMC49ers, GMC Western States
1975 Glenbrook - Manny Powerdrive, OneTon
455 F Block, G heads
San Jose
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| Re: Interesting article on LED's [message #115257 is a reply to message #115252] |
Wed, 16 February 2011 14:58 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
Karma: 0
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| ggroth wrote on Wed, 16 February 2011 13:32 |
I heard a commentary from a UC IRVINE professor yesterday on radio show. He says that, in running some tests, he found more than trace amounts of lead, mercury, arsenic, phosphorous and some other bad things in LED lights. He feels they could lead to problems if many of them wind up in city dumps and leach into the ground water. He also commented about the dangers of mercury in broken fluorescent lamps, if not disposed of properly. I'm not particularly worried about all this, but thought it is interesting.
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Yea, Probably in the parts per trillion range, after he burnt off all the plastic...
Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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| Re: Interesting article on LED's [message #115258 is a reply to message #115150] |
Wed, 16 February 2011 15:29 |
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The same LED's in Phillips bulbs are the same LED's that Kelly uses in his lights.
I purchased one of the Phillips bulbs at Home Depot and am using it here in the RV. It really is nice. The price stung but I bought it for the low current draw not because it was economical.
Your link you shared was a great commentary on the Phillips bulbs.
Thanks
John Ruff
John Ruff
Chandler, AZ
1975 Eleganza
WA3RIG
If I use ZDDP in a new car - will the tappets go flat?
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| Re: Interesting article on LED's [message #115264 is a reply to message #115258] |
Wed, 16 February 2011 17:55 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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Another great source for finished LED lights is IKEA. They have many different styles, and most will work on 12v. The 110ac is converted into 12v by a small inverter on the plug.
If you shop at IKEA, be advised that they operate an "As-Is" part of the store. This is were all customer returns and aged showroom items are marked down and re-sold. I picked up an very nice LED strip, that is normally $50 new, for $10 and I've have done this twice. Nicely packed and easy to mount. I think the strip style that I bought would be great mounted under cabinets, since the LED's are SMD devices and very small. I have operated these directly from the house 12v without any trouble.
Tom Phipps
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: Interesting article on LED's [message #115288 is a reply to message #115264] |
Wed, 16 February 2011 21:53 |
bukzin
Messages: 840
Registered: April 2004
Location: North California
Karma: 0
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| tphipps wrote on Wed, 16 February 2011 15:55 |
Another great source for finished LED lights is IKEA. They have many different styles, and most will work on 12v. The 110ac is converted into 12v by a small inverter on the plug.
If you shop at IKEA, be advised that they operate an "As-Is" part of the store. This is were all customer returns and aged showroom items are marked down and re-sold. I picked up an very nice LED strip, that is normally $50 new, for $10 and I've have done this twice. Nicely packed and easy to mount. I think the strip style that I bought would be great mounted under cabinets, since the LED's are SMD devices and very small. I have operated these directly from the house 12v without any trouble.
Tom Phipps
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So I assume you are cutting off the 120v to 12v transformer
and just wiring it direct,
is that correct?
Bukzin
1977 Palm Beach
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| Re: Interesting article on LED's [message #115298 is a reply to message #115288] |
Wed, 16 February 2011 23:17 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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Yes, toss the power adapter and wire direct. They have nice little lamps, albiet a bit pricey for IKEA...
| bukzin wrote on Wed, 16 February 2011 20:53 |
| tphipps wrote on Wed, 16 February 2011 15:55 |
Another great source for finished LED lights is IKEA. They have many different styles, and most will work on 12v. The 110ac is converted into 12v by a small inverter on the plug.
If you shop at IKEA, be advised that they operate an "As-Is" part of the store. This is were all customer returns and aged showroom items are marked down and re-sold. I picked up an very nice LED strip, that is normally $50 new, for $10 and I've have done this twice. Nicely packed and easy to mount. I think the strip style that I bought would be great mounted under cabinets, since the LED's are SMD devices and very small. I have operated these directly from the house 12v without any trouble.
Tom Phipps
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++++++++++++++++++++++++++++++++++++++++++++++++++++++++
So I assume you are cutting off the 120v to 12v transformer
and just wiring it direct,
is that correct?
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-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: Interesting article on LED's [message #115339 is a reply to message #115298] |
Thu, 17 February 2011 10:23 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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Yes, just toss the 110v plug/adapter and wire directly to 12v. Be sure your polarity is correct, otherwise they will not light.
Yes, they are pricey, if you cannot find them in the "AS-IS" portion of the store. With an IKEA within 6 miles of the house, it is one of my "roaming places". Breakfast for a $1.00 is okay also.
Tom Phipps
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] Interesting article on LED's [message #115396 is a reply to message #115339] |
Thu, 17 February 2011 17:54 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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Remember the old saying " What are the biggest lies? 1. Yes, I'll call you.
2. The check is in the mail. & 3. I am a government expert and I am here to
HELP YOU.
What has this got to do with a GMC? I dunno.
Jim Hupy
Salem, OR
78 GMC Royale 403 w/LED clearance lights.
On Thu, Feb 17, 2011 at 8:23 AM, Thomas Phipps <tph1pp5@yahoo.com> wrote:
>
>
> Yes, just toss the 110v plug/adapter and wire directly to 12v. Be sure
> your polarity is correct, otherwise they will not light.
> Yes, they are pricey, if you cannot find them in the "AS-IS" portion of the
> store. With an IKEA within 6 miles of the house, it is one of my "roaming
> places". Breakfast for a $1.00 is okay also.
>
> Tom Phipps
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>
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