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Clear mercury vapor high bay

Clear mercury vapor high bay

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These are in the cafeteria at my church (There used to be a school here but it closed in 2009). There are 8 lights and they have beautiful color shifting metal halide lamps. This one has a clear mercury lamp.

SAM_7874.JPG SAM_7669.JPG SAM_6296.JPG SAM_6304.JPG

Light Information

Light Information

Manufacturer:probably Ruud or Econolight
Electrical
Wattage:175

File information

File information

Download: Download this File
Filename:SAM_6296.JPG
Album name:Lumex120 / Metal halide/Mercury vapor
Keywords:Lanterns
File Size:381 KB
Date added:Jul 24, 2016
Dimensions:1848 x 2465 pixels
Displayed:243 times
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wattMaster
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Jul 24, 2016 at 07:20 PM Author: wattMaster
I sure hope it doesn't get removed.

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douro20
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Jul 24, 2016 at 07:36 PM Author: douro20
If it has a CWA ballast they could put an open-fixture rated 175w QMH lamp in it.
wattMaster
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Jul 24, 2016 at 07:51 PM Author: wattMaster
But it's closed?

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douro20
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Jul 24, 2016 at 10:57 PM Author: douro20
The issue is with the fixture being able to contain an exploded lamp. Unless the bowl is made of tempered glass the housing won't be sufficient.
Lumex120
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105555521242365640724 UCM30tBQDUECOV6VeG5W87Vg zfarmadillo
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Jul 25, 2016 at 06:44 AM Author: Lumex120
They use unprotected halides in these which have exploded before (I have seen it) and nothing bad has happened.

Any machine is a smoke machine if you operate it wrong enough.

wattMaster
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Jul 25, 2016 at 06:59 AM Author: wattMaster
I bet it was scary!

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Lumex120
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105555521242365640724 UCM30tBQDUECOV6VeG5W87Vg zfarmadillo
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Jul 25, 2016 at 07:07 AM Author: Lumex120
Not really. 175w lamps are small so it just made a small "pop".

Any machine is a smoke machine if you operate it wrong enough.

wattMaster
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Jul 25, 2016 at 07:09 AM Author: wattMaster
It seems like something that quiet wouldn't do much damage to the enclosure.

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streetlight98
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Mike McCann


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Jul 26, 2016 at 07:50 PM Author: streetlight98
Well you gotta remember, these lamps are several hundred degrees when they are running. The shards of hot glass do indeed melt the plastic, but you probably don't notice it from the ground. The shards of lamps glass will cool before severe damage is done but if they were my fixtures I'd use protected lamps just for the sake of not having to clean all the broken glass and quartz out of the fixture and being exposed to all the chemicals inside the broken arc tube.

What utilitarian fixtures for a nice looking room. They couldn't have gotten some nicer looking fixtures?

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

wattMaster
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Jul 26, 2016 at 08:13 PM Author: wattMaster
You can read about that in one of my threads/topics.

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Lumex120
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105555521242365640724 UCM30tBQDUECOV6VeG5W87Vg zfarmadillo
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Jul 26, 2016 at 08:23 PM Author: Lumex120
Actually, I will have the job of converting some of the lights from another church to LEDs and they will replace these. I will make sure these get reused, and will maybe try and get them and give them away here if they do replace them (they probably won't.)

Any machine is a smoke machine if you operate it wrong enough.

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105555521242365640724 UCM30tBQDUECOV6VeG5W87Vg zfarmadillo
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Apr 07, 2019 at 09:02 PM Author: Lumex120
Update: this light started to cycle (yes, cycle) and so it was retrofitted with an LED corn cob (which is ironically a bit brighter than the 175w halides, not sure what wattage it is though. I was able to get the old ballast, it's a single tap Advance 120v which is weird since I have never seen a single tap ballast like that before. I already got another one a few years ago when another fixture was converted. The reason they are using LED bulbs isn't for energy savings, it's because they want an "instant-on" lighting setup in this room since it gets rented out a lot.

Any machine is a smoke machine if you operate it wrong enough.

streetlight98
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Mike McCann


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Apr 08, 2019 at 05:34 AM Author: streetlight98
Hmm interesting. Yeah single tap mh ballasts are uncommon especially for 120v. Usually they're 277v.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

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