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Sylvania ToLEDo Retro Chroma: UV Exposure 4 x 4w Sylvania LED filament lamps in green, blue, red and yellow colours shown being exposed to UV radiation from a couple of T8 blacklight blue lamps. It's interesting to see the phosphors lighting up quite brightly, specifically the green while the blue does not as it has a clear finish. You can see the individual LED's on each filament glowing on that one though. It's interesting to note that on the close up of the blue lamp's filament, there appears to be tiny specs of phosphor on the filament which is lighting up red, green and blow. Must have been some dust about when that lamp was assembled.

Sylvania ToLEDo Retro Chroma: UV Exposure

4 x 4w Sylvania LED filament lamps in green, blue, red and yellow colours shown being exposed to UV radiation from a couple of T8 blacklight blue lamps.

It's interesting to see the phosphors lighting up quite brightly, specifically the green while the blue does not as it has a clear finish.
You can see the individual LED's on each filament glowing on that one though.

It's interesting to note that on the close up of the blue lamp's filament, there appears to be tiny specs of phosphor on the filament which is lighting up red, green and blow. Must have been some dust about when that lamp was assembled.

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Filename:387A2098.jpg
Album name:FrontSideBus / Solid State
Filesize:6478 KiB
Date added:11 Feb, 2024
Dimensions:3072 x 2048 pixels
Displayed:17 times
URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=20103
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Comment 1 to 5 of 5
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dor123   [15 Apr, 2024 at 11:24 AM]
Most coloured LED filament lamps, uses phosphor LEDs rather than non-phosphored regular LEDs.
AngryHorse   [15 Apr, 2024 at 11:43 AM]
Shocked That green is astonishing just of the UV tubes! Very Happy
Wish someone would do a cyan version of this! Cool
dor123   [15 Apr, 2024 at 11:52 AM]
I've never seen a cyan LED filament lamp. I've only seen yellow, orange, red, green, blue and 395nm.
AngryHorse   [15 Apr, 2024 at 01:44 PM]
If they can do it with Christmas lights, I’m sure a filament version could be made?, what a perfect clear mercury replica they would be! Cool
dor123   [15 Apr, 2024 at 01:46 PM]
All of the coloured LED filament lamps we have in Israel, Eurolux and Fetaya, are 7W, and that too strong for Christmas lights and festoons. Most festoons here, uses coloured regular A60 LED lamps.

Comment 1 to 5 of 5
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