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Old 03-03-2021, 12:46 PM   #41
eccerr0r
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Default Re: Light bulb flicker when turning on after long time off.

Actually F40T12's are around 2800-2900 lm... so LEDs are a bit more efficient than previously mentioned. F32T8's that are about the same brightness as F40T12's are closer to LED efficacy.
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Old 03-03-2021, 03:37 PM   #42
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Default Re: Light bulb flicker when turning on after long time off.

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Originally Posted by RukyCon View Post

Oh, and the green end caps of Philips fluorescent tubes might be going away as Philips packs up the Salina, Kansas factory to move overseas (saw a few F40T12s at the Home Cheapo recently with silver end caps, made around December 2020).
Did they go to all China like they did with all their T5s?!

(The writing was already on the wall for T5s back in 2016, they didn't last as long, possibly already started getting manufactured in China as soon as 2015)

This time, it really looks like "light-bulb-mageddon" (of course, a.k.a. "light-bulbpocalypse")

What about the T8s? Are the T12s getting moved out before the T8s?
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Old 03-03-2021, 04:42 PM   #43
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Default Re: Light bulb flicker when turning on after long time off.

I'm seeing people are tossing out their linear fluorescent fixtures so I suspect they are noting that demand is dropping at least for home use. I don't know about commercial/business use whether existing buildings are being retrofitted to LED, though I suspect this is happening slowly too... and thus demand for tubes go down and the desire to outsource them...

Then there's the FC8T9/22 or somethingrather... I've yet to see a cheap LED retrofit for this. Think I have an electronic ballast in my fixture, or at least the starting doesn't give the annoying flickering.

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Old 03-03-2021, 05:24 PM   #44
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Default Re: Light bulb flicker when turning on after long time off.

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Originally Posted by RJARRRPCGP View Post
Did they go to all China like they did with all their T5s?!

(The writing was already on the wall for T5s back in 2016, they didn't last as long, possibly already started getting manufactured in China as soon as 2015)

This time, it really looks like "light-bulb-mageddon" (of course, a.k.a. "light-bulbpocalypse")

What about the T8s? Are the T12s getting moved out before the T8s?
They're current plan is to move production to India or Poland, but i would not be supried if some moves to China as well.

I probably should have added this, but the T12s are still made in the USA, just without the green endcaps, now i have not seen any silver endcaped Philips T8s in stores yet, mostly due to T12s being more popular in residential areas than T8, and most commercial places with T8 typically buy theirs from wholesalers.

Now my main worry about the transfer is for any place that still uses Slimline (single pin) or High Output type fluorescent tubes, because, as far as i can tell, Philips is the last manufacturer of these types of lamps, so i wonder if they'll even bother moving manufacturing overseas (especially since most of these lamps are over 4ft long) or if they might just discontinue them and leave everyone who still uses them in the dark (just like what they did with their low pressure sodium lamps a few years ago).
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Old 03-03-2021, 09:58 PM   #45
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Default Re: Light bulb flicker when turning on after long time off.

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I probably should have added this, but the T12s are still made in the USA, just without the green endcaps
Without those ends? I usually saw the gray ones with specialty ones, such as the red-spectrum'ed ag-spec'ed ones.
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Old 03-04-2021, 12:31 AM   #46
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Default Re: Light bulb flicker when turning on after long time off.

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Without those ends? I usually saw the gray ones with specialty ones, such as the red-spectrum'ed ag-spec'ed ones.
Yeah, but in this case, these were just some standard 4100K and 6500K tubes in 2ft, and 4ft lengths. They still had the Alto branding though.
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Old 04-08-2021, 10:35 PM   #47
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Default Re: Light bulb flicker when turning on after long time off.

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Yeah, but in this case, these were just some standard 4100K and 6500K tubes in 2ft, and 4ft lengths. They still had the Alto branding though.
That's like the ones that the same factory apparently manufactures for Feit. Yes, IIRC, there are Feit-branded ones at The Tractor Supply Company.
I found out that they are likely by far, manufactured by the same factory.

The Feit and Ace branded ones won't have the green colored ends, TMK.
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