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50w mercury recessed cans

50w mercury recessed cans

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I returned to this grocery store https://www.lighting-gallery.net/gallery/displayimage.php?album=search&cat=0&pos=16&pid=176522
They are indeed 50w, not 80w or 100w, as I found an etch and was able to get a pic. I suppose this wattage makes sense since the drop ceiling these are in is barely 8' high. The lamp in image above was among one of the dimmest of the remaining mercury lamps in these can lights. Does anybody recognize that etch?

20200723_223258.jpg 20200420_213945.jpg 20200415_193325.jpg 20200229_195436.jpg

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Filename:20200420_213945.jpg
Album name:BlueHalide / New album
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Keywords:Lamps
File Size:315 KB
Date added:Apr 20, 2020
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Date Time:2020:04:20 21:39:45
DateTime Original:2020:04:20 21:39:45
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URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-176834
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BlueHalide
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Apr 20, 2020 at 08:51 PM Author: BlueHalide
Also, no date code in that etch either.
BlueHalide
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Apr 20, 2020 at 08:52 PM Author: BlueHalide
The next image in my gallery is that link posted above.
paintballer22
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120V/240V 60hz


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Apr 20, 2020 at 08:56 PM Author: paintballer22
I have a few of these bulbs. They are made by Tungsram. Mine can be seen here
joseph_125
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GoL
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Apr 20, 2020 at 09:16 PM Author: joseph_125
Ahh I figured from the shape they were 50w mercury. I have one of these lamps too. The date is stamped on the lamp base. Mine has an ink stamp that reads "HUNGARY 09 87".
WestinghouseCeramalux
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Vintage HID Collector


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Apr 20, 2020 at 09:33 PM Author: WestinghouseCeramalux
The date stamp is usually on the base of Tungsram lamps.

Proudy suffering from "Westinghouse Lifeguard Disease" since 1977! :lol:
There's no known cure for Westinghouse Lifeguard disease, so the only way to treat it is to find more!!! :lol: :lol: :lol:
Real HID lamps contain Hg! ;D

Bottled lightning
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Apr 20, 2020 at 09:46 PM Author: Bottled lightning
Aren’t 50-100w lamps the same size?
WestinghouseCeramalux
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Apr 20, 2020 at 09:50 PM Author: WestinghouseCeramalux

Aren’t 50-100w lamps the same size?

If you're thinking of the envelope, in this case ED17, then yes.

Proudy suffering from "Westinghouse Lifeguard Disease" since 1977! :lol:
There's no known cure for Westinghouse Lifeguard disease, so the only way to treat it is to find more!!! :lol: :lol: :lol:
Real HID lamps contain Hg! ;D

Lumex120
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Multicolor NE-2s


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Apr 20, 2020 at 09:53 PM Author: Lumex120
I'd keep an eye out for any remodeling going on as these will almost certainly be removed.

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

Fluorescent05
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Zack


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Apr 20, 2020 at 10:47 PM Author: Fluorescent05

I'd keep an eye out for any remodeling going on as these will almost certainly be removed.

Definitely!

I can't pretend a stranger is a long awaited friend. -Neal Peart

BlueHalide
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Apr 21, 2020 at 03:33 PM Author: BlueHalide
I didnt think Tungsram was a brand used in the US, at least ive never seen any of their products here. I cant imagine these lamps could possibly be original to these fixtures, the store has got to be over 30 years old.
WestinghouseCeramalux
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Apr 21, 2020 at 03:56 PM Author: WestinghouseCeramalux

I didnt think Tungsram was a brand used in the US, at least ive never seen any of their products here. I cant imagine these lamps could possibly be original to these fixtures, the store has got to be over 30 years old.

Tungsram products were sold here in the US (I have some). They were also sold under GE branding after GE bought them out around 1989.

Proudy suffering from "Westinghouse Lifeguard Disease" since 1977! :lol:
There's no known cure for Westinghouse Lifeguard disease, so the only way to treat it is to find more!!! :lol: :lol: :lol:
Real HID lamps contain Hg! ;D

DimBulb
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Apr 21, 2020 at 04:55 PM Author: DimBulb
I remember seeing Action Tungsram incandescent bulbs here in the late 1970s.

My very first word was LIGHT!

joseph_125
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GoL
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Apr 21, 2020 at 07:09 PM Author: joseph_125
Mine had a secondary ME-DTC etch on it. I'm guessing they were imported by them. The ICI Lite-Light residential 80w MV lights from the 80s also came with Tungsram bulbs, as were the replacements they sold.
BlueHalide
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Apr 21, 2020 at 07:38 PM Author: BlueHalide
Interesting, just find it odd, expected some newer production (chinese westinghouse or the like) lamps to be in use here, not lamps dating back to the 80's. These 50w mercury lamps, from what ive seen only last 12K hours, so theoretically, these Tungsram lamps should be no older than say, 2015. However, there is a good chance these operate continuously (24/7) since this store is open 24 hours, and as I understand it, mercury lamps can last much longer if ran continuous without any switching cycles. How crazy would it be if these were in fact 30 years old?
joseph_125
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Apr 21, 2020 at 07:59 PM Author: joseph_125
I've noticed that in a fair bit of intact indoor MV installations have lamps dating as far back as the late 70s still in use especially true for the 175w installations. There's a mall with some late 70s Sylvania cleartops in the MV recessed lights that burn 24/7.

Maybe these were NOS too, I imagine 50w MV not being that big of a seller so maybe the lamps were NOS when they were installed. Are all the lamps the same or are they mixed?
BlueHalide
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Apr 21, 2020 at 08:39 PM Author: BlueHalide
joseph, of the 30 or so can lights in this lobby, I only counted 7 mercury lamps, the rest were relamped with a mix of reflector type CFL and LED, as well as a couple A-shape LED too, it really looked bad. Of the 7 lights still mercury vapor, all appeared to use this same bulb in the photo above, they all had that dark material accumulating around the dimple. Two of them definitely had the same etch, including the one above.
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Apr 21, 2020 at 09:53 PM Author: joseph_125
Interesting, maybe these were the original lamps to the installation then. I noticed that Philips rates their 50w lamps at 24000 hours like the larger lamps.
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