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Westinghouse 175w Metal Halide from 1978 quite a find. Look at the early arc tube end seals.

Westinghouse 175w Metal Halide from 1978 quite a find. Look at the early arc tube end seals.

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Can't believe I found this lamp.

image~373.jpeg image~357.jpeg image~277.jpeg image~256.jpeg

Light Information

Light Information

Manufacturer:Westinghouse
Model Reference:MH175/BU/4
Lamp
Lamp Type:Metal Halide
Filament/Radiator Type:Quartz arc tube, small wound tungsten electrodes
Base:Mogul E39s
Shape/Finish:BT28, clear
Service Life:7500 hours
Fixture
Ballast Type:M57
Electrical
Wattage:175w
Voltage:135v
Current:1.4A
Optical
Lumen Output:12,000 lumens
Lumen Efficacy:68 lpw
Color Temperature:4000K
Color Rendering Index:65
Physical/Production
Dimensions:about 8 1/2"
Factory Location:Bath, NY USA
Fabrication Date:October 1978
Application/Use:General Lighting, where decent CRI is desired

File information

File information

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Filename:image~277.jpeg
Album name:silverliner / metal halide
Keywords:Lamps
File Size:642 KB
Date added:Feb 16, 2017
Dimensions:2465 x 1848 pixels
Displayed:200 times
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ace100w120v
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Feb 16, 2017 at 10:36 PM Author: ace100w120v
Very nice! How was the life on these early metal halides?
Silverliner
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Verd a ray classic.


GoL
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Feb 16, 2017 at 10:52 PM Author: Silverliner
Read the lamp info, my friend.

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

Administrator of Lighting-Gallery.net. Need help? PM me.

ace100w120v
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Feb 16, 2017 at 10:55 PM Author: ace100w120v
Never mind, I missed it even though I looked! Wow, 7500 hours, that's not long at all!




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Feb 17, 2017 at 06:14 AM Author:
Impressive catch, Dave! Have you run it yet?
Silverliner
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Verd a ray classic.


GoL
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Feb 17, 2017 at 12:37 PM Author: Silverliner
Max, yes I tried it but only made a dim blue dancing arc. However I tried that on a mercury ballast, will try it on a metal halide ballast a bit later.

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

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Silverliner
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Verd a ray classic.


GoL
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Feb 17, 2017 at 08:22 PM Author: Silverliner
UPDATE: Lit this on a metal halide ballast. Works great!

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

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ricksbulbs
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Feb 18, 2017 at 12:35 AM Author: ricksbulbs
Yup, Dave, the MH lamps won't start well on a merc ballast, been there done that! You need a lead-peaked CWA ballast or linear reactor on 277 volts. I have a 400 watt phosphor coated Westy with low hours from this same era. Nice lamp, but Westy screwed up using the open frame and glass tube over it, as it caused asymmetric arc tube blackening, and the later Philips had the same issues. Yeah, this is kind of a rare lamp these days. A 270 watt Cree Edge HO LED barely makes as much light as this! Shows what CRAP LED's are! Later dude! Rick D.
Mandolin Girl
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Mainly the mechanical side of things


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Dec 09, 2017 at 07:39 AM Author: Mandolin Girl
Where on earth do you find such great lamps.????

Hugs and STUFF Sammi xXx (also in Aberdeen)

There are two kinds of light  -  the glow that illuminates, and the glare that obscures.
James Thurber  -  US author, cartoonist, humourist, & satirist (1894 - 1961)

funkybulb
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Dec 09, 2017 at 08:30 AM Author: funkybulb
Hello miss cuddy

He either finds then in Restore or
Theift shops, and ebay some times.

If u ever travel to the US u will
Have fun here hitting restores
Up as those lamps usually $5 or
Less. Some time uk or Eu lamps
Can be found there as well
It sorta a donation base building
Supply material so it sorta hit and miss
Place as what ever comes in, no two
Restore is the same.

No LED gadgets, spins too slowly.  Gotta  love preheat and MV. let the lights keep my meter spinning.

sox35
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Mainly the electrical side of things


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Dec 09, 2017 at 08:39 AM Author: sox35
We don't have any of those over here, not to my knowledge, anyway

I've found a few old lamps in surplus stores but that was back in the 70's, they've all gone now. eBay have some good stuff on occasion, but the sellers want silly money for them. I found a 200W SLI/H linear sodium lamp, which I would love, but the guy wants almost £100 for it, which whether it's a fair price or not (which I doubt), is way out of our reach

Ria in Aberdeen
It'll be all right in the end, and if it isn't all right, it isn't the end  Smiley

rjluna2
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Robert


GoL
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Dec 09, 2017 at 11:37 AM Author: rjluna2
You can always find them in your local bootsales location, Ria.

Pretty, please no more Chinese failure.

sox35
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Dec 09, 2017 at 11:42 AM Author: sox35

You can always find them in your local bootsales location, Ria.

Hmm, that's a possibility, but the main snag is we don't have a car, so getting to them would be a problem.

Not sure I'd find a linear sodium lamp at one, though.

Ria in Aberdeen
It'll be all right in the end, and if it isn't all right, it isn't the end  Smiley

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