Another one in praise of LED lights.

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What am I getting wrong here ?
You say they replaced the bulb but then say the bulb is not replaceable.

They replaced the whole thing - said there was no way to replace the "bulb" and it is all a single unit

If they had said "just keep the old one, not worth returning it" then I would have taken it apart to investigate
but they wanted the old one back so I thought I better not fiddle!
 

silva

Über Member
Location
Belgium
When LEd lights fail it tends to be the driver circuit that goes, the heat in such a confined space " cooks " the electronics. This is more marked in the cheaper ones. Philips made a lamp exclusively for Dubai, long life and high efficiency, originally it wasn't sold in this country but that's no longer the case. Here's an interesting video from " Big Clive " explaining the inner workings. It's 5 years old so not up to date but does a goos job of explaining why lamps fail.

View: https://www.youtube.com/watch?v=klaJqofCsu4

That heat dissipation was true in the early 2005 years when designs / power circuits were 5-10 times less efficient than 2 decades later, which is why those with the shape of an incandescent weighted like 3 times more due to the entire encasing (except the transparent / glass ofc) was made of metal, complete with protruding ribs like a heatsink to increase air's contact space.

Nowadays failures are caused by cost cutting in components, semiconductors that work near the edge of their design curves, and too thin or detoriating constructive materials for both ECB and leds, with as notable example of the latter the later introduced philament (wolfram alike look) model where the supportive structures of the led strings just collapsed, and 2) their brightness decreasing speedy gonzales to some dim nightlamp to bin and replace, Philips 5 year ago being an example brand/period/model.

And, as always, even with better components/materials, weak spots that ruin it, such as the glue that binds parts, or the housing, some environmental-friendly certified cheaper whoms bind is good for a day.

I'v came across one exception: a 3W workspot design from the early years, with a widely spaced array oldschool leds protruding through a reflective sheet metal, bought 2 at the time, abit later 1 more with a PIR sensor, and many years later 3 more secondhand (they aren't produced anymore like that), and they all are still as bright as at start.

Just like with all, there's alot crap for sale, sometimes electrical fail for no apparent reason, nothing visibly seen, at 1 occasion I came across 5 identical brand/model twistlock socket ones all new looking, all dead, totally transparent glass and no black spots, breaks, whatever to be seen.
Another example case were a batch similar identical, from the period with leds individually mounted on mini-pcb's, mounted with alot space inbetween in a variety of geometrical shapes including as TL replacement, where one after another went black (not dark as no light, but burned out, something that should never happen). Expensive things, yet failing like that.

Before a certain point in time, failure was mostly due to heat and thus design (to replace existing, sometimes things have to be cramped in small space) but since, mostly due to cost cutting. Plastic cheaper than metal, cheaper than glass (but glass conducst heat way better), one plastic cheaper than another, and so it went further downhill, resulting in the default becoming doctrine of replacing the entire product instead of the failing part.

These days they demolish sturdy built houses instead of renovating them, due to the environmental law doctrines' demands that makes renovation too expensive, new houses with thin walls, wooden parts, all kinda cosmetic design pro- and intrusions art made of biodegradable crap, read: a financial horror to maintain and repair, read: throw away houses, every 2-3 decades a demolition>rebuild>pay more cycle.
 
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We have been Philips Hue for nearly a decade but there is a lot more choice now that is not only cheaper, but in some cases, better.
I moved everything over to LED lights when I moved into my current home in 2024. Some rooms had up to 5 60W lamps which I have replaced with 3 to 5 watt LED ones depending on what we need.

Typically we have a single light on in the living room set at 36% of maximum output and, on occasion, turn on another matching lamp at the same power setting.

Home assistant make everything ‘just work’ using it’s automations, scenes and scripts linking in other things such a mmWave presence sensors.
 
When I first moved in here I got some new lights from a lighting shop nearby
The bloke that ran the shop told me that I had 2 options
a) get the light - then when the included LED light wnet - get a good quality one and then replace that one in about 20 years or more
b) just pay a bit extra now and never have to replace the bulb for over 20 years

He estimated that the included LED "bulbs" (in those days) would last between a few week and a few years and there was no way to tell which

Things seem to have improved and the better quality ones are now the normal
 

oxoman

Über Member
When I first moved in here I got some new lights from a lighting shop nearby
The bloke that ran the shop told me that I had 2 options
a) get the light - then when the included LED light wnet - get a good quality one and then replace that one in about 20 years or more
b) just pay a bit extra now and never have to replace the bulb for over 20 years

He estimated that the included LED "bulbs" (in those days) would last between a few week and a few years and there was no way to tell which

Things seem to have improved and the better quality ones are now the normal

Sadly whilst you pay for what you get with LED lights I've yet to find any that have lasted more than 5yrs in an industrial or commercial setting. My experience within my house is they last about 3 or 4yrs. Like the old lamps the smaller they are the quicker they seem to go. Candle shape seem the worst the old shape pearl and globe style seem better.
 

figbat

Former slippery scientist
Sadly whilst you pay for what you get with LED lights I've yet to find any that have lasted more than 5yrs in an industrial or commercial setting. My experience within my house is they last about 3 or 4yrs. Like the old lamps the smaller they are the quicker they seem to go. Candle shape seem the worst the old shape pearl and globe style seem better.

We did a total renovation of our house around 13 years ago. This included a complete rewire and installation of LED downlighters in some rooms. So far not a single one has failed out of a total of 21 that are fitted.

However the pendant lights or wall-mounted uplighters that we fitted with LED bulbs (Edison screw and GU10 types) have been through several lamps each.
 

oxoman

Über Member
You got lucky. Sadly a lot of stuff is made and sold as cheap as possible.
 

Oldhippy

Cynical idealist
Like this. Not everyone's cup of tea but I like them.
20260131_131507.jpg
 

wafter

I like steel bikes and I cannot lie..
Location
Oxford
Aye... I bought some a while ago to replace the pitiful existing LED bulbs in the (admittedly probably under-specced) pair of ceiling lights in the homestead's kitchen.

Went with 20W / 3400 lumens / 4000K (a "neutral" while since it's predominently a working area so didn't want it too warm). These were novel (to me) bulbs with multiple LED chips arranged in a corncob pattern around a cylindrical body.

The difference has been astounding - now you can actually see what you're doing, which is nice..
 
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