Author Topic: No-Mercury HPS lamps...  (Read 3525 times)
Foxtronix
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No-Mercury HPS lamps... « on: April 20, 2008, 11:50:52 AM » Author: Foxtronix
I see more ecological HPS lamps (No-Mercury lamps), but are they really ecological? What is the impact of the sodium in environment? Are they junkie  :-\ or better?  ;D
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Mr. Big
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Re: No-Mercury HPS lamps... « Reply #1 on: April 20, 2008, 02:08:00 PM » Author: Mr. Big
They indeed don't have any mercury in them, just sodium and xenon I believe as a buffer gas.

sodium turns to sodium hydroxide in the environment because it is highly reactive.
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GE M-400A1
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Re: No-Mercury HPS lamps... « Reply #2 on: April 21, 2008, 08:44:34 PM » Author: GE M-400A1
Those no mercury sodium lamps are junk especaly the ones Philips makes! The don't last long at all and they cycle a lot!! I know this because my family owns a huge printing company with 30 fixtures with 400W Philips no mercury ones!! Sylvania makes good no mercury HPS Lamps!
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J-Frog
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Re: No-Mercury HPS lamps... « Reply #3 on: April 22, 2008, 09:24:48 AM » Author: J-Frog
Yeah current Philips HPS lamps tend to be junk although they are US made and all...
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Jeremiah The Bullfrog

Foxtronix
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Formerly "TiCoune66". Also known here as Vince.


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Re: No-Mercury HPS lamps... « Reply #4 on: April 22, 2008, 04:55:45 PM » Author: Foxtronix
Mercury is used for maintain good electric properties of the arc and make a better start. It's normal no-mercury ones cycles faster... BTW, is the sodium hydroxide dangerous or toxic?  :-X
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fran4001
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Re: No-Mercury HPS lamps... « Reply #5 on: April 22, 2008, 05:33:01 PM » Author: fran4001
Just as a sidebar of sorts, and I'm on record here as being a lover of all things old- lamps included, I sell Philips lamps for a living and the return rate on the HPS Alto lamps has been next to nothing. Really. We sell several hundred monthly, and I haven't had a return since late October, and when I brought that lamp home, it worked. The MH are a bit more temperamental, and we do get a few a month occasionally. But the ALTO stuff really is okay, at least up here in PA!!!!
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FGS
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Re: No-Mercury HPS lamps... « Reply #6 on: April 22, 2008, 07:33:02 PM » Author: FGS
Its also known as lye.
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