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GE Halarc

GE Halarc

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Has anyone ever heard of this? How does it work and what kind of lamp is it? CFL?

Color_temp__NMAH.JPG History_of_CFLs.JPG General_Electric_halarc_lamp_NMAH.JPG NMAH_CFL_s.JPG

Light Information

Light Information

Manufacturer:General Electric
Fixture
Location:National Museum of American History

File information

File information

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Filename:General_Electric_halarc_lamp_NMAH.JPG
Album name:lightman64 / Lightbulbs in National Museum of American History
Keywords:Lamps
File Size:117 KB
Date added:Apr 03, 2009
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Date Time:2008:03:17 09:41:43
DateTime Original:2008:03:17 09:41:43
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FGS
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Rory Mercury!


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Apr 03, 2009 at 07:08 PM Author: FGS
This is self-ballasted MH lamp. Lamptech has one. Dunno about others.

Let me ask you where is this museum located? Would love to check it out myself.

Why I like LEDs on top of other lighting tech?
LEDs = Upgrade 95% of the applications. (That is if you avoid eBay's LEDs).


LED brainwash? No, people uses them cuz they work well for them.

Silverliner
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Verd a ray classic.


GoL
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Apr 03, 2009 at 07:32 PM Author: Silverliner
That museum is in Washington DC I believe. Anyway that's a cool lamp, sadly GE never got to put the lamp in full production. They did make a few for sale, very few.

May all the great lighting technologies have their place in history.

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gmercury2000
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Apr 03, 2009 at 08:22 PM Author: gmercury2000
I'm gonna have to take a trip down there, as much as I hate going into DC!
swpidgeon
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Apr 03, 2009 at 08:45 PM Author: swpidgeon
I shouldn't say much, but Sylvania has self-ballasted CMH lamps available now. I know we have them in PAR flood and spot, and I wouldn't be surprised if they were available in other configurations. I think they are 24 watts. We're starting to use them in place of CFL's for certain applications.

As for the American History Museum, it's definitely a nice trip to make, plus it's free to get in. If you aren't thrilled about DC traffic and parking, take the metro. For a few bucks you can park and it will take you right to the National Mall / Smithsonian. Well worth it to me!
Silverliner
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Verd a ray classic.


GoL
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Apr 04, 2009 at 12:07 AM Author: Silverliner
Spencer I know about the new CMH intergrated PARs by Sylvania. Philips has been making their version for a while, and many department stores here use them in place of halogen PARs.

May all the great lighting technologies have their place in history.

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Medved
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Apr 04, 2009 at 07:20 AM Author: Medved
Do some of you know, what ballast was there on this GE? As on the www.Lamptech.co.uk they mentioned, the "Filament helps to ballast the arc", what sound to me quite strange. The ballast is very simple as an electronic circuity, so no complex square wave, regulated power HID electronic used today as standard. And HF ballast (used for low pressure lamps) would not be DC...

No more selfballasted c***

James
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Apr 05, 2009 at 10:48 PM Author: James
The tungsten filament acts as a purely resistive ballast here, hence the rather low luminous efficacy. The bulk of the electronics simply provides the high voltage pulse necessary for ignition of the arc tube. The rest of the electronic design of the ballast is greatly simplified by operating the arc tube on a DC supply - two key units of the ballast architecture can be omitted when you run on DC. That made it considerably smaller and more importantly, also a lot cheaper. A full HF AC ballast remains rather expensive, especially when you have to use high temperature components suitable for building in to the lamp base. Note that the present day CMH-i lamps on the market cost at least double the price of the original GE Halarc.
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