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GE Mazda A-H1 Lit
I tried lighting up my GE Mazda A-H1 for the first time.
Keywords: Lit_Lighting

GE Mazda A-H1 Lit

I tried lighting up my GE Mazda A-H1 for the first time.

DSC06144_Philips_1000W_Merc_Firing_Up.JPG DSC06146_Philips_1000W_Merc_Warmed_Up.JPG DSC06150_GE_Mazda_400W_A-H1_Lit.JPG DSC05597_Induction_Light_Lit.JPG DSC02020.JPG
File information
Filename:DSC06150_GE_Mazda_400W_A-H1_Lit.JPG
Album name:lite_lover / Lamps Lit
Keywords:Lit_Lighting
Company and Date Manufactured:GE Mazda
Model Number:A-H1
Wattage:400W
Lamp Type:Medium pressure mercury
Filesize:85 KiB
Date added:Apr 28, 2013
Dimensions:1024 x 768 pixels
Displayed:187 times
Color Space:sRGB
Contrast:0
DateTime Original:2013:04:07 19:43:55
Exposure Bias:0 EV
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/15 sec
FNumber:f/4.5
Flash:No Flash
Focal length:16.7 mm
ISO:100
Light Source:Unknown: 0
Make:Sony
Max Aperture:f/2.8
Model:DSC-W1
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=15584
Favorites:Add to Favorites

Comment 5 to 24 of 24
Page: 1 - 2

streetlight98   [Apr 29, 2013 at 03:24 PM]
Beautiful lamp here Darren. Cool Better not let anything happen to this gem. these things are SUPER rare in perfect condition from what i know. Now all you need is a Form 109 to go with it. Very Happy
joe_347V   [Apr 30, 2013 at 12:17 AM]
There's a Form 109 on eBay right for 300 bucks. Shocked

Maybe sticking it in a gumball for the time being would also work. Razz
GEsoftwhite100watts   [Apr 30, 2013 at 02:16 AM]
I like the gumball idea...
Silverliner14B   [Apr 30, 2013 at 02:49 AM]
nice lamp and yep i like the gumball idea too.
joe_347V   [Apr 30, 2013 at 05:59 AM]
Yeah, I think operating one in a Form 109 requires one with a working deflection coil since the H1 lamps are vertical burn only.

Most of the deflection coils have either been removed or don't work anymore. Gumballs use vertical lamps so they're fine.
streetlight98   [Apr 30, 2013 at 07:30 PM]
Yep if there's an MIA deflection coil or it doesn't work, you can only use HPMV lamps (and what's bad about that? lol) Seems like these are LPS lamp's opposite? (vertical burn instead of horizontal and close to opposite ends of the spectrum in light color)

when did they make these and low long was the life?
joe_347V   [Apr 30, 2013 at 11:31 PM]
They're listed in here(pg 29) at 4000 hours with 16000 initial lumens. In comparison, a Westy 400w clear merc has a 24000+ hours life and 21000 initial lumens.

Oh and it turns out GE made a 3kW merc at one point too. I'm sure any remaining ones are quite rare. Shocked
streetlight98   [Apr 30, 2013 at 11:41 PM]
woah. Shocked a 3000W MV eh? Shocked
GEsoftwhite100watts   [May 01, 2013 at 12:31 AM]
These were made in the (early?) 40s and were (I THINK) among the first MV lamps...I THINK Westinghouse also had a similar lamp.
BTW these are a medium-pressure lamp (not high pressure like modern ones or low pressure like a florescent lamp) and have a Pyrex arc tube. To run this lamp horizontally, you'd need a magnet thingy (the GE Form 109 fixtures had them I think) to keep the arc from bowing upward and melting the Pyrex.
streetlight98   [May 01, 2013 at 01:44 AM]
pyrex isn't glass?
joe_347V   [May 01, 2013 at 03:35 AM]
Pyrex is better known as borosilicate glass or hard glass which has a low thermal expansion and is harder to break under thermal shock. HID outer bulbs and streetlight refractors are made with this stuff.
streetlight98   [May 01, 2013 at 11:00 AM]
ahh so those glass lasagnia dishes are made of the same glass as streetlight refractors and HID lamps? cool!
GEsoftwhite100watts   [May 02, 2013 at 12:01 AM]
And measuring cups? Yes, they are...
joe_347V   [May 02, 2013 at 01:24 AM]
Actually newer Pyrex brand baking dishes aren't made with borosilicate glass anymore. They switched to cheaper soda-lime glass sometime in the late 90s.
GEsoftwhite100watts   [May 02, 2013 at 01:28 AM]
Interesting, never knew that either...
streetlight98   [May 02, 2013 at 02:07 AM]
does that mean the dishes aren't as thermal shock resistant and chip resistant as older borosilicate ones? aren't incandescents and fluorescents made from soda-lime?
joe_347V   [May 02, 2013 at 03:33 AM]
Yeah, the older borosilicate ones are more thermal shock resistant and yeah most incandescent and fluorescent lamps are made with soda-lime. I suspect my 1kW incandescent is made with borosilicate glass though.
GEsoftwhite100watts   [May 02, 2013 at 03:10 PM]
IMO that makes sense since it's such a big bulb; it needs to be more shatter and heat resistant...
streetlight98   [May 02, 2013 at 06:50 PM]
I belive that 300W and up incandescents are borosilicate but don't quote me on it.
joe_347V   [May 03, 2013 at 05:09 AM]
Yeah, I would assume so too. Most outdoor rated lamps like halogen PARs should be borosilicate too.

Comment 5 to 24 of 24
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