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Generic F8T5 Wear

Generic F8T5 Wear

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Here is a no-name lamp I put in an under-cabinet fixture about a year ago. One end has begun to blacken. I'm not sure if it's near-EOL or not. So far it hasn't developed a shimmer, there's still a steady blue glow at that end, and it's never extinguished or began to rectify after startup.

youtube_7CP0eZjlDl8.jpg youtube_EFuZ-FfGBv4.jpg generic-f8t5.jpg under-cabinet-starter-repair.jpg

Light Information

Light Information

Model Reference:F8T5-CW

File information

File information

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Album name:Patrick / Fluorescent
File Size:688 KB
Date added:Jan 01, 2019
Dimensions:2460 x 2214 pixels
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Jan 11, 2019 at 12:07 AM Author: arcblue
Some lamps seem to get black spots at the end early in life and go on years like that, and others don't get this till near the very end. That blue glow at one end is interesting, I have an F15T8 that's like that and it keeps going and going....I think it looks cool

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Jan 11, 2019 at 08:42 AM Author: dor123
In this case, I think that the blue glow at the end, is caused by the phosphor layer being thin here. Cold cathode blue glow looks much different, and slightly violet.
Also: The upper picture suggests that there is a lot of blackening at the right end, means that the lamp is close to EOL.

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.

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I lives in Israel, which is a 230-240V, 50hz country.

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