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Total relamp fail

Total relamp fail

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These are not MV or SOX firing up. They are CFLs in prismatic ceiling lights designed for them, but either the lamps are poor quality or the fixtures overheat them and they fail early. They first get dim and take a long time to warm up on colder days, or never warm up, and eventually they go pink and then go out. Only months after a full relamp, nearly every light has failed like this (there are many more out of view)

Fluorescent hi-mast Kelso 3 Rivers Mall+.jpg Steber Parkmaster+.JPG Pink ceiling packs+.jpg image~1.jpeg

Light Information

Light Information

Manufacturer:RAB
Lamp
Lamp Type:CFL
Optical
Color Temperature:2700K

File information

File information

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Filename:Pink ceiling packs+.jpg
Album name:arcblue / Lighting in Washington State
Keywords:Lanterns
File Size:98 KB
Date added:Oct 06, 2018
Dimensions:911 x 650 pixels
Displayed:188 times
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-151770
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dor123
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Oct 07, 2018 at 01:24 AM Author: dor123
The problem are the lamp quality. Either these gone mercury starved, and the red and green phosphors glowing from the UV from the argon, or the lamps are contaminated which is most likely, as it was occur too fast to be mercury starvation. You can check the spectrum of the lamp using a CD to verify this. If the green, orange and red phosphors emission appears, the lamp is mercury starved, if some bizarre emission appears, the lamp is contaminated.

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.

Medved
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Oct 07, 2018 at 01:26 AM Author: Medved
It looks more like a batch manufacturing problem - could be contamination causing leaky seals (so oxygen poisoning)...

No more selfballasted c***

streetlight98
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Mike McCann


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Oct 07, 2018 at 10:03 AM Author: streetlight98
LOL at first I thought these were DX MV lamps being operated on low-watt 55V HPS gear, since this is approximately the result I've gotten when doing it. Without the ignitor, the MV won't strike at all, but leave the ignitor in the circuit, the lamp fires up and never warms up all the way. Sad to see this happen with bad CFL lamps on a whole installation.

To resist is to piss in the wind, anyone who does will end up smelling.

Lightingguy1994
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Jun 02, 2019 at 04:12 PM Author: Lightingguy1994
Are they normal medium base CFL ? If so, unfortunately I think a full glass coated A19 LED bulb would be a better fit for this. Of course Id like to see these be HID but that will likely not happen
streetlight98
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Mike McCann


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Jun 02, 2019 at 06:03 PM Author: streetlight98
More than likely he meant PL-C lamps, which I've seen in many canopy lights like this as well as tallpack lights.

To resist is to piss in the wind, anyone who does will end up smelling.

arcblue
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Jun 02, 2019 at 09:35 PM Author: arcblue
That’s correct. These had 4-pin, 3-U type PL-C plug-in lamps. Not sure brand or wattage. Since I took this photo, most fixtures were relamped, failed again, and were relamped once more. Then the owner gave up. They all, as I guessed would happen, have been replaced with LED fixtures. Very sad that lamp quality is getting so bad that it forces people to go LED (or source NOS lamps) - but I think that’s the point - LED is a source of tremendous profit for lighting manufacturers.

I'm lampin...

arcblue
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Jun 02, 2019 at 09:37 PM Author: arcblue
Oh and I had forgotten - before these were fluorescent, there were 35w HPS Hubbell fixtures there. I bet before those - there were incandescents.

I'm lampin...

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