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Dead Philips ALTO lamp glows GREEN near a blacklight

Dead Philips ALTO lamp glows GREEN near a blacklight

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I recently got an F20T12/BLB tube and discovered that it made this dead Philips ALTO lamp glow green! I might just have to keep this as a Halloween prop!

20191009_073820.jpg 20190926_222938.jpg 20190413_142552.jpg 20181225_175502.jpg

Light Information

Light Information

Manufacturer:BLB lamp: Generic Chinese, Dead lamp glowing green: Philips
Lamp
Lamp Type:F20T12
Filament/Radiator Type:Preheat
Base:Medium Bi-pin
Shape/Finish:T12
Fixture
Fixture Type:Fluorescent
Ballast Type:Magnetic
Socket Type:G13
Electrical
Wattage:2x20 watt
Voltage:120 Volts
Current:0.95 Amps (Low Power Factor)

File information

File information

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Filename:20190413_142552.jpg
Album name:Fluorescent05 / Fluorescent Lamps
Keywords:Miscellaneous
File Size:28 KB
Date added:Apr 25, 2019
Dimensions:474 x 843 pixels
Displayed:117 times
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URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-158889
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ace100w120v
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Apr 25, 2019 at 11:15 PM Author: ace100w120v
Pretty! What color WAS the dead lamp?
Fluorescent05
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Apr 25, 2019 at 11:32 PM Author: Fluorescent05
Daylight.

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

dor123
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Apr 26, 2019 at 06:22 AM Author: dor123
Regular daylight halophosphors, don't glows under blacklights. I think it is some form of daylight deluxe phosphors.

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.

rjluna2
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Robert


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Apr 26, 2019 at 06:36 AM Author: rjluna2
Cool

Pretty, please no more Chinese failure.

Fluorescent05
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Apr 26, 2019 at 07:15 AM Author: Fluorescent05

Regular daylight halophosphors, don't glows under blacklights. I think it is some form of daylight deluxe phosphors.

This lamp is a Philips ALTO lamp with thinner glass than other lamps, so less UV from the blacklight is absorbed by the glass, so the phosphors in it might be halophosphors.

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

dor123
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Apr 26, 2019 at 08:56 AM Author: dor123
Daylight halophosphors glowing only by the short wave UV, hence it don't glow under blacklight.

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.

Lightingguy1994
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Apr 26, 2019 at 09:58 AM Author: Lightingguy1994
If the lamp was a high CRI itll have triphosphors. My Alto supremes are high cri cool white and they glow green too.

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dor123
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Apr 26, 2019 at 12:12 PM Author: dor123
So it have some form of high CRI halophosphors. Daylight triphosphors glowing bluish white under blacklight. I confirmed this in the far past, when I had a blacklight CFL.

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.

Binarix128
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220V AC 50Hz, 525@29,970i NTSC


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Apr 26, 2019 at 07:53 PM Author: Binarix128
Cool ! The actual normal coats of the fluoreacent tubes not glows under the blacklight !

LED will never beat other lamps. :inc: :hps: :mv:
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Fluorescent05
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Nov 30, 2019 at 06:56 AM Author: Fluorescent05
Update: I recycled the Philips Alto to get a new GE 5000K F20T12 lamp.

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

bryanrb
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Nov 30, 2019 at 09:59 AM Author: bryanrb
I have a GE Reveal F8T5 and it glows green under a blacklight. Reveal fluorescents are 2700k I think. A pinkish warm white color.
ace100w120v
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Nov 30, 2019 at 10:12 PM Author: ace100w120v
2600K...
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