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F20T12 preheat fixture above sink finally failed, tube lights really dim, starter dosent attempt relight

F20T12 preheat fixture above sink finally failed, tube lights really dim, starter dosent attempt relight

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F20T12 preheat fixture above sink finally failed, tube lights really dim, starter dosent attempt relight, tube was used for 12 hours a day for 4 years

20200608_173718.jpg 20200608_175607.jpg 20200415_220307.jpg i0ifm6x6g2t41.jpg

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Filename:20200415_220307.jpg
Album name:RyanKorponay12 / Fixtures
Rating (1 votes):
Keywords:Lanterns
File Size:150 KB
Date added:Apr 18, 2020
Dimensions:1848 x 2464 pixels
Displayed:77 times
Date Time:2020:04:15 22:03:07
DateTime Original:2020:04:15 22:03:07
Exposure Bias:-2 EV
Exposure Time:1/30 sec
FNumber:f 1.6
Flash:No Flash
Focal length:4.03 mm
ISO:150
Make:LG Electronics
Model:LG-H933
White Balance:0
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-176704
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dor123
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Apr 18, 2020 at 11:12 PM Author: dor123
The filament is broken, and the starting voltage of the T12 is enough for the 240V OCV of the preheat ballast to create a glow discharge through the entire tube. I encountered this a lot.

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.

suzukir122
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Apr 19, 2020 at 02:22 AM Author: suzukir122
One thing I cannot stand is when a tube reaches EOL early due to broken filaments. I've had a lot of GE lamps, specifically
Ecolux versions, do this. Especially the F40 versions. When this happens, the tube can work only on certain ballasts. Definitely
not with a Preheat ballast though.

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dor123
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Apr 19, 2020 at 03:12 AM Author: dor123
All T12 lamps, when the electrodes becomes depleted emitter, breaks on preheat after they rectifies for a while. This is the normal EOL of a fluorescent lamp on a preheat ballast.

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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