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Discussion Starter · #1 ·
I have some old GE fixtures in my barn I don't know if they are metal halide,
mercury vapor, low pressure sodium or what. I have no bulbs. The numbers I have on the fixture are these: C 769N101 400 Watts S517BD 120 V 60 HZ Its pretty heavy about 16 inches across and a dull gray. An optical assembly attaches to it. On the tag its reads General Electric Optical Assembly C777G101A. Can anyone point me in the right direction or know what I have here?
 

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Fond of three phase
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I have some old GE fixtures in my barn I don't know if they are metal halide,
mercury vapor, low pressure sodium or what. I have no bulbs. The numbers I have on the fixture are these: C 769N101 400 Watts S517BD 120 V 60 HZ Its pretty heavy about 16 inches across and a dull gray. An optical assembly attaches to it. On the tag its reads General Electric Optical Assembly C777G101A. Can anyone point me in the right direction or know what I have here?
IIRC, the ANSI number S51 pertained to a 400 watt HPS lamp, ballast and igniter pack. LU400 lamp or equivalent. High pressure sodium. Kind of obsolete, now. :rolleyes:
 

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Discussion Starter · #3 ·
Will halide bulbs work in these fixtures? Is that information you got accessible? I have a ton more probably useless lights and bulbs I would like to organize. Thanks a ton for all the help!!!!!!!!!!!
 

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Fond of three phase
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Will halide bulbs work in these fixtures? Is that information you got accessible? I have a ton more probably useless lights and bulbs I would like to organize. Thanks a ton for all the help!!!!!!!!!!!
I'm responding from memory!
Everything has changed so drastically, in regards to lighting.
Most of these lamps and fixtures, have been discontinued, by most manufacturers, to concentrate on newer technologies. There was one firm, that made MH lamps that would work in HPS fixtures. I don't remember the name, or how well they worked.
Right now, the hot setup is LED lighting, for street lighting and other outside uses.
 

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Sounds like you have a 400 watt high pressure sodium high bay. HPS sucks and is obsolete but it still gets installed a lot even in new construction, at least outdoors. You can convert that light to a metal halide look by installing a Venture White-Lux or similar lamp.
 

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Right now, the hot setup is LED lighting, for street lighting and other outside uses.
In Australia they did a trial with street lighting technology,
They tried discharge lamps, floro lamps,CFL's, and LED.
They were installed and allowed to run for two years.
The LED fixtures had a increadable 100% failure rate !
So we won't be seeing LED street lights for some time.
The best in the long run is still discharge lamps !
 

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Sounds like you have a 400 watt high pressure sodium high bay. HPS sucks and is obsolete but it still gets installed a lot even in new construction, at least outdoors. You can convert that light to a metal halide look by installing a Venture White-Lux or similar lamp.
Asside from led, it is the most efficient type of lighting... And it lasts the longest.

And its about 1/3 the cost of LED.

:001_huh:
 

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In Australia they did a trial with street lighting technology,
They tried discharge lamps, floro lamps,CFL's, and LED.
They were installed and allowed to run for two years.
The LED fixtures had a increadable 100% failure rate !
So we won't be seeing LED street lights for some time.
The best in the long run is still discharge lamps !
The "City" I reside in (Prefer to call it a "People's Republic") had LED street lighting installed on major thoroughfares, a few of the LED fixtures are visible from my house & seem to be doing well, have only noticed one acting up in my travels. Just a observation on my part, LEDS still have a way to go IMHO.
 

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felonious smile.
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The best street lighting is hps.

Sent from my C5215 using electriciantalk.com mobile app
 
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