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Philips Alto Supreme Electrode View

Philips Alto Supreme Electrode View

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Out of the two cases i have only one bulb came this way. The electrodes look alot smaller on these than on older bulbs. Almost as if they are using T8 or T5 sized electrodes. Wonder how this would affect lifespan. Id like to know what you guys think

20190222_133348.jpg 20190118_161320~2.jpg 20181227_150717.jpg 181214_135034_COLLAGE-1.jpg

Light Information

Light Information

Manufacturer:Philips
Lamp
Lamp Type:F40T12

File information

File information

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Filename:20181227_150717.jpg
Album name:Lightingguy1994 / T12 Lamps
Keywords:Lamps
File Size:217 KB
Date added:Dec 27, 2018
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Date Time:2018:12:27 15:07:17
DateTime Original:2018:12:27 15:07:17
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Make:LG Electronics
Model:LG-H831
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lightinglover8902
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Power distributor: CenterPoint Energy. 120V 60Hz


GoL UCP_yo1gHzReqS19MjJMXUKg
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Dec 27, 2018 at 06:52 PM Author: lightinglover8902
Looks like it has a cathode guard. Are new fluorescent tubes now have cathode guards now these days?

fluorescent lover 40
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Lights are awesome! :)


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Dec 27, 2018 at 09:02 PM Author: fluorescent lover 40
@lightinglover8902: Only the Philips ones.

Current: US 120v 60hz
Power provider: Southern California Edison (SCE)

-Date decoder of some US lamps 1960-present.
-I'll save any vintage lamp... dead or alive! Smiley

RyanF40T12
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Dec 28, 2018 at 01:35 AM Author: RyanF40T12
only SOME of the Philips. Even they have moved away from guards in some of the newer lamps.

The more you hate the LED movement, the stronger it becomes.

powertek4
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Dec 28, 2018 at 04:13 PM Author: powertek4
Does it work ?
Lightingguy1994
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Dec 28, 2018 at 04:24 PM Author: Lightingguy1994
No the lamp has no vacuum. It looks like the failure happened in the end cap area. Specifically in the part where the vacuum is pulled then glass is sealed. Appears to be a factory defect with the annealing process. The case it was in has no sign of physical damages and the other tubes work great.
powertek4
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Dec 28, 2018 at 04:35 PM Author: powertek4
that would be awesome if it did!
ace100w120v
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Jan 18, 2019 at 09:18 PM Author: ace100w120v
The new Philips T12s only have a cathode guard at one end, for the mercury dosing capsule. With that said, IMHO they at least used to be some of the better modern F40 lamps, despite being Altos. I have cases' worth of the F40T12/DX. With that said, I haven't tried Sylvania in a few years now.
Lightingguy1994
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Jan 18, 2019 at 09:28 PM Author: Lightingguy1994
The shielding doesn't surprise me, its just that the electrode itself is so small. Its half as wide as a standard one, but the lamps i have in my fixture are holding great with no marks forming yet and they are in daily service since i put em in
ace100w120v
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Jan 19, 2019 at 04:30 PM Author: ace100w120v
The ones I've seen do develop brownish aging marks quite quickly in commercial use.
vytautas_lamps
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My idol is Mylene Farmer, deal with it.


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Feb 12, 2019 at 10:01 AM Author: vytautas_lamps
wow they totally used T8 sized filaments in bigger glass mounts

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 ;

jercar954
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Mar 11, 2019 at 06:06 PM Author: jercar954
Do they have guards on both ends? Lately, I've seen Philips with guards on one end.

Preheat and T-12 fluorescents forever! Down with LED's and instant start T-8 fluorescents.

jercar954
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Mar 11, 2019 at 06:06 PM Author: jercar954
Do they have guards on both ends? Lately, I've seen Philips with guards on one end.

Preheat and T-12 fluorescents forever! Down with LED's and instant start T-8 fluorescents.

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