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GE Mazda A-H1 400W Still cold

GE Mazda A-H1 400W Still cold

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This lamp has one of the most beautiful run up sequences I have seen, rivaling SOX lamps. The low pressure arc is really cool. The crack did not spread, but it takes a goos 20-30 min to reach full temp.

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Filename:DSC04265.JPG
Album name:SOX55W / HID
Keywords:Lamps
File Size:211 KB
Date added:May 01, 2012
Dimensions:1537 x 2050 pixels
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rjluna2
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Robert


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May 02, 2012 at 05:17 AM Author: rjluna2
Did you see any Mercury/Argon flashover during the run up?

Pretty, please no more Chinese failure.

bluminator71
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May 02, 2012 at 12:05 PM Author: bluminator71
Wow!! I'm glad to see this lamp working even with the cracks in it!! Yes, I love the color of the arc!!
SOX55W
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120V 60Hz here!


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May 02, 2012 at 12:13 PM Author: SOX55W
@rjluna2: Yes, there's definitely some argon flashing on ignition, but not alot. Just for the first second or two. Don't know if that's due to the ballast, but it seems that all mercury lamps do that.

Bring SOX lamps back!!!

FYI, LED's are NOT the most efficient lighting technology available! Don't know how people keep coming to that conclusion!

My other interests: sports cars, refrigeration, microcontroller projects, computer hardware, and any sort of custom fabrication.

rjluna2
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Robert


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May 02, 2012 at 01:37 PM Author: rjluna2
@SOX55W: That is the same way with the flashover light I have it posted at 400 Watt Mercury Vapor Lamp and Makeshift Fixture during the initial start up phase as you described

Pretty, please no more Chinese failure.

Cavannus
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May 11, 2012 at 11:50 PM Author: Cavannus
Nice series!!

I don't know anything about these lamps: were they designed for lighting? If so, I assume there is a lot of energy lost (due to a significant part of UVs blocked by the external glass envelop) hence low efficiency; then what is the benefit of this technology compared to LPS?
dor123
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May 12, 2012 at 01:02 AM Author: dor123
This is a medium pressure merucry lamp. It have a hard glass arctube, so the arctube don't produces shortwave UV.
These lamps were replaced by the high pressure MV lamps, which can be made in lower wattages, burn horizontally, and have shorter run-up time and hot restrike time.
LPS lamps have more lm/w than MV in daylight vision and mesopic vision, but have poor nightvision lumens compared to MV lamps.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

Cavannus
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May 12, 2012 at 11:22 AM Author: Cavannus
You're answering all my questions! Thanks a lot!
FrontSideBus
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May 12, 2012 at 11:27 AM Author: FrontSideBus
These could be used in the horizontal burning position but a magnetic arc deflector had to be used.

UK out of the EU!
http://www.lighting-gallery.net/gallery/index.php?cat=11271

Ash
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May 12, 2012 at 11:53 AM Author: Ash
I sure hope the crack won't spread. Avoid fast heating or cooling and generally avoid powering up this lamp
SOX55W
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120V 60Hz here!


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May 12, 2012 at 08:07 PM Author: SOX55W
I've run it up a couple more times since then. The crack has not spread, but I won't run it very often since it's such a rare lamp and I don't want to discolor the arc tube. It's a little hard, though...it's addicting how beautiful this piece of history is.

Bring SOX lamps back!!!

FYI, LED's are NOT the most efficient lighting technology available! Don't know how people keep coming to that conclusion!

My other interests: sports cars, refrigeration, microcontroller projects, computer hardware, and any sort of custom fabrication.

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