wattMaster
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This tube would have to be from 1984 if it lasts that long. |
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dor123
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Average life of LED product, is 3-4 years according to what I've seen. LED tube here designed to be operated with the gear being disconnected. The lifespan rating of LED lighting manufacturers, are all plain BS. |
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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.
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Lightingguy1994
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Oh yes I agree. The tube seems alright for what it is but they are way out to lunch on the lifespan rating.
If every LED tube lasted 30+ years, they would make increasingly very poor profits on selling new lamps
I put this tube in service in a single lamp fixture in the kitchen where it will see nightly use 10-14 hours every single night |
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Ash
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Those 30 year ratings are usualy based on ridiculously low hours/day figure. Something like 3 hours/day when in reality many FL's work schedule is 4..5 times that, so if the life in hours rating is fair, the life in years is 6..7.5 years. So its about same, or only somewhat less, than a (present day good) FL tube. And when it is over you replace it like you would a FL tube
What i find more concerning about those likes is, how low the Lm actually is. They are promoted as being equivalent to the FL tube of the same size, while in reality with 1600..2000 Lm (in different models i seen) they give between 1/2 .. 3/5ths the light compared to 3250..3350 Lm FL tube. Obviously, when peeps think they are equivalent and see the power rating lower in half, they think those are double the efficacy..
If they play fair they do put life rating in Hours and Lm ratings on the box, but those details are rarely printed in the "main" data area like they are with FL |
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Lightingguy1994
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The box for the Osram LED tube shows a CRI of 82 and 2200 lumens which seems to be okay since this tube is bright, its certainly brighter than the F32T8/25w/ES GE it replaced. We'll just have to see how long it lasts in heavy service. |
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streetlight98
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I suppose any lamp would last 32 years if you kept it in its box on a storage rack. 
Not sure if I'd try this on a magnetic ballast. Magnetic F32T8 ballasts are too uncommon to risk screwing up and not sure an F40T12 ballast would like it very much either. Certainly wouldn't try preheat. TBH I would be interested to see the behavior but not at the expense of loosing a ballast. Perhaps try it on a LPF RS ballast or one of those Benchlite ballasts.
Would be hilarious if LED tubes "LED migrated" like fluorescents mercury migrate on Benchlite ballasts lmao. |
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Lightingguy1994
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Haha and no worries I wouldnt dare try on a magnetic T8 ballast lol. I would try it on a F40T12 one since I do have lots.
Theres one I have that has no label and lights tubes not even close to full brightness so thats perfect for a little test 
I did try it on a single lamp F40 LPF and it was dim just like a lone tube on the blue side of a 2lamp magnetic ballast. It had hertz but softly like a fluorescent also! |
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streetlight98
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Yeah magnetic ballasts are a little different electrically than electronic ballasts. They do different things when you install an incorrect lamp. Generally, electronic ballasts are more tolerant to incorrect use. They'll basically light anything lol. With magnetic ballasts you really gotta do an individual test with the ballast using incorrect lamps since some magnetic ballasts will drive lamps without overheating even if they're not rated for them and some ballasts that ARE rated for certain lamps will run scorching hot with them (like F14T12s on a 14-20W trigger start or preheat ballast or F30T12/F34T12s on a F40T12 ballast). |
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Ash
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In fact, i seen today a couple LED tubes that "Mercury migrated". 4ft T8 tubes. Normal 6500K LED light in the ends, Blue tint and dimmer in the center. I guess Phosphor degraded in the hotter area of the tube |
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streetlight98
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Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.
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LART2014
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Here in Brazil, there are LED tubes available for working without ballasts only... they are directly connected to the mains. The great advantage is that we can get rid of the noise from the ballasts and save more energy... |
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streetlight98
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Here the ballasts are virtually all electronic so they don't make noise. The tubes connected right to the line voltage make more sense though. |
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Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.
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Lightingguy1994
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I did some comparison tests with this 17w LED tube , 25w F32T8 ES lamp and a regular F32T8 lamp on a single lamp setup with an instant start ballast.
The system watts with the 17w LED tube is about the same watts at the 25w F32T8 lamp, just brighter at around 28-30 watts with each one. Tried this on 3 different ballasts same results.
The LED tube is good for replacing F32T8 tubes but does not use less watts than the 25w F32T8 |
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Ash
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Here the ballasts in virtually all older (>8 years old) lights are Magnetic, but they are made well and are silent. Also, usually a hum from lighting in a room can be tracked down to 1 or 2 ballasts which do that, while the rest are silent
Saving energy - Not so much really vs. 36W T8
What is the light output of a F32T8 ? |
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Lodge
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32 years of expected life, Why then is the Warranty only 5 years? Sounds more like they only last 5 years.... |
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Lightingguy1994
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Will have to wait and see, that one is still working good in the kitchen since December. The testing I did to compare system power was done with other tubes of the same model i just bought.
Personally I don't care for these tubes, I just manage the lighting in my dads house while I still live here so I get whats best for the savings (and spares my GOOD lighting  ) Once its just me on my own I'll be using all the real lighting goodies I own
@Ash I hear the Lumens of an F32T8 are around 2800-3000 or so, perhaps other members can clarify as I'm not fully sure |
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dor123
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Philips F32T8 ALTO 30PK triphosphors produces 2710 average lumens.
Sylvania FO32/XP/XL/ECO3 triphosphors produces 2830 average lumens.
GE F32T8/XL/SPXxx/HL/ECO produces 2820-2915 average lumens.
GE F32T8XLSPXxxHCVG with covRguard produces 2228-2735 average lumens.
Data was taken from the companies PDF files. |
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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.
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Cal
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I've seen the Philips version of these and I only noticed they weren't fluorescent when I looked up and saw the end caps. |
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Solanaceae
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Heh, the local sonic replaced all heir fluorescents with these like 7 or so months ago. About 5-10% have failed at various points in time, and I saw one or two which had dead sections in the middle. |
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Lightingguy1994
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Surprisingly I haven't seen failures from these 4 tubes yet and they've been up for a long time. 3 are in the basement in single lamp striplights with sylvania quicktronic instant start ballasts. These dont get long hours but they are frequently switched. The 4th tube is in the kitchen above the window. It is used every single night from dusk to dawn or all day if forgotten. it is on a full sized can sylvania ballast instant start.
They don't seem to be bad lamps, but they are hella boring. |
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streetlight98
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Yeah honestly i havent seen any failures on jobs weve done for customers, even oddball unknown brands. Theyre all made in the same factories regardless of a well known or unknown name on the sleeve. The cost difference is just the branding... |
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Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.
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