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Talk about a mercury starvation heh?

Talk about a mercury starvation heh?

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A worn out OSRAM Value 500k F18T8 Fluorescent tube. Poor thing, probably not much left in it. Starts up extremely dim and pink, after 10 minutes, reaches full brightness. Well, not as bright as would be new per say, but at least it becomes white :D Who cares it's as bright as 4 watt night light bulb..

IMG_20200125_194755~0.jpg IMG_20191219_202805.jpg IMG_20191219_203146.jpg IMG_20191219_150414.jpg

Light Information

Light Information

Manufacturer:Osram
Model Reference:F18T8 Value
Lamp
Lamp Type:Fluorescent
Filament/Radiator Type:Single coiled emitter coated cathode filament
Base:G13 bi-pin
Shape/Finish:Tubular tube
Service Life:approx 20k hours
Electrical
Wattage:18W
Voltage:120V
Current:0.2A
Optical
Lumen Output:High
Lumen Efficacy:High
Color Temperature:5000k
Color Rendering Index:Pretty good
Physical/Production
Factory Location:Germany
Fabrication Date:2014 - present
Application/Use:For general lighting

File information

File information

Download: Download this File
Filename:IMG_20191219_203146.jpg
Album name:vytautas_lamps / fluorescent tubes T8/T12
Keywords:Lamps
File Size:439 KB
Date added:Dec 19, 2019
Dimensions:2464 x 2212 pixels
Displayed:110 times
Date Time:2019:12:19 21:12:42
DateTime Original:2019:12:19 20:31:46
Exposure Bias:0 EV
Exposure Time:5968/1000000 sec
FNumber:f 1.8
Flash:No Flash
Focal length:3.5 mm
ISO:88
Make:Blackview
Model:BV6000S
Software:Windows Photo Editor 10.0.10011.16384
White Balance:0
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-169605
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dor123
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Dec 19, 2019 at 09:57 PM Author: dor123
Looks like impurities got inside the lamp.

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.

Jovan
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Dec 23, 2019 at 04:30 PM Author: Jovan
I have seen worse.One lamp was glowing pink and it looked like it doesn't have drop of Hg.This soviet tibe behind can't get starved.
bryanrb
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Dec 27, 2019 at 12:22 AM Author: bryanrb
I have a Radionic Hitec F6T5/CW that lights up a dim pink/purple. That is the argon being ionized. Probably Hg starved.
dor123
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Dec 27, 2019 at 01:29 AM Author: dor123
Try to capture a spectrum of your lamp.

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.

TL buis
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Jan 05, 2020 at 04:12 AM Author: TL buis
A lot of new Philips lamps starts up first time the same. Looks like this one had a stuck starter for along time????
vytautas_lamps
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My idol is Mylene Farmer, deal with it.


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Jan 05, 2020 at 04:16 AM Author: vytautas_lamps

A lot of new Philips lamps starts up first time the same. Looks like this one had a stuck starter for along time????

Could be, i've got a bunch of these from old office so it probably is the cause of this tubes failure. It isn't even that old or used

New lighting technologies is a pity fest everywhere you look. From LEDs that last only for two months, to a never-ending global starvation of t8 fluorescent tubes.
We shall reinforce ourselves with good old full mercury t12s and HIDs made to surpass one's life, and give them all the middle finger ;

dor123
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Jan 05, 2020 at 04:38 AM Author: dor123
I capture a spectrum of a dim red 54W T5 HO lamp , and it looks like that Andrew (Globe Collector) claim about air poisoning is the right claim. The spectrum had bizarre lines and bands as you can see in my picture. What interesting, is that when halophosphor T8 reaching to this state, most of these lines and bands don't appearing.

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.

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