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Tungsram 175w HGLi lamp from 1979. What a surprise!

Tungsram 175w HGLi lamp from 1979. What a surprise!

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Never knew Tungsram made US spec export mercury lamps in the 1970s! I know they did in the 1980s for OEMs like with yardblasters. The 1979 lamp here differs from the 1980s ones. The base, actually a Sylvania base, is secured with basing cement rather than using threaded glass. The inner construction is similar to the earlier isothermal lamps. Even has a mica deflector. Works great, makes a rather pale color compared to new DXs made in the USA.

79F81D48-C893-49F9-AC98-99CA4038B0AE.jpeg 87930DC0-D61C-4272-B94A-454BCDA259C5.jpeg 89569D91-2E06-4547-BCB4-5EDF7E3C6ACA.jpeg 4E3A5266-C2AD-474E-BC90-E19EA04C9CD0.jpeg

Light Information

Light Information

Manufacturer:Tungsram
Model Reference:HGLi
Lamp
Lamp Type:Mercury Vapor
Filament/Radiator Type:Quartz arc tube
Base:Mogul
Shape/Finish:E28
Service Life:24,000 hours
Electrical
Wattage:175w
Optical
Lumen Output:8500 lumens
Lumen Efficacy:50 lpw
Color Temperature:3900K
Color Rendering Index:45
Physical/Production
Dimensions:9” long
Factory Location:Hungary
Fabrication Date:1979

File information

File information

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Filename:89569D91-2E06-4547-BCB4-5EDF7E3C6ACA.jpeg
Album name:silverliner / good ol' mercury vapor
Rating (3 votes):
Keywords:Lamps
File Size:398 KB
Date added:Sep 05, 2018
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Date Time:2018:08:07 18:36:34
DateTime Original:2018:08:07 18:36:34
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Comments
fluorescent lover 40
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Lights are awesome! :)


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Sep 05, 2018 at 06:19 PM Author: fluorescent lover 40
Nice find!

Current: US 120v 60hz
Power provider: Southern California Edison (SCE)

-Date decoder of some US lamps 1960-present.
-I'll save any vintage lamp... dead or alive! Smiley

paintballer22
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120V/240V 60hz


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Sep 05, 2018 at 07:12 PM Author: paintballer22
Nice, made in the year I was born in.
dor123
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Other loves are computers, office equipment, A/Cs


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Sep 08, 2018 at 02:27 AM Author: dor123
I didn't know that Tungsram made lamps for the US market.

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.

Globe Collector
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Preserving the Brightest Ideas of Our Age


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Sep 08, 2018 at 03:02 AM Author: Globe Collector
I agree Dave, nice Score. I now need to look back at all my HgLi's...I think all mine are 1980's models with conform-fit bases.


Hey Dave, can I just have a little rat through that box?

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

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Sep 08, 2018 at 11:50 AM Author: Andy
That's a beauty. I was only just walking when that was made!

My main area of interest is vintage fluorescent and mercury lamps. Always interested in doing lamp trades - just let me know! Smiley

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Sep 08, 2018 at 12:16 PM Author: James
Most intriguing, I never knew such a thing existed. Very rare indeed to find a European-made 175W lamp. If I remember right from my visit years ago, don’t you also have an equally rare British GEC 175W mercury? I would love to see a photo of that again if possible!




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Sep 08, 2018 at 12:20 PM Author:

Hey Dave, can I just have a little rat through that box?

Me too..!
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Sep 08, 2018 at 02:26 PM Author: Pyte
Congratulation to it.
@ dor123: it was't in production for Hungary. In Hungary I have never seen a lamp like this (at all). I saw it in the catalogues, once I saw a few dosens in Hungary but those were from the 90's.
The etch is a typical from 1979. "HGLI" Does it have a dome? Does it really originally have a Sylvania cap?

LED-lighting is pseudoscience.
LED-lighting is only a generated demand.
LED-lighting came to life simply by business interest.

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