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The Dubai Lamp
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MK14:

--- Quote from: james_s on April 09, 2022, 09:53:50 pm ---A lot of halogen bulbs are 3000K and have been for many years. The only time you're likely to notice is if you have a mix of different color temperatures in a room. I've been amazed at how quickly the brain adapts to treat any light source as "white".

--- End quote ---

That makes sense, and is encouraging. Also, as I see it. Assuming the 50,000 hour life expectancy is genuine and easily achievable. Then (depending on daily hours usage, assuming 3 to 6 hours daily, hence 25 to 50 years life) those LED light bulbs essentially last forever (in our living perception of them, depending on current age) and also use virtually no power, especially the 2.3 watt 40 Watt equivalent versions. I bet/suspect some older devices, when switched off, but which keep a low power transformer active. I.e. the primary has mains voltage on it, and the on/off switch is connected to the secondary part. Perhaps use 2.3 watts, even when supposedly switched off and/or any small transformers (chargers and things), left switched on but not connected to anything.

I.e. 2.3 watts is arguably next to nothing, especially compared to many other things, especially anything that heats things up on purpose (heating, hot water, etc).
I'm amazed so much light can come from a mere 2.3 watts (40 watt equivalent), it could be run off batteries, for a period of time. Perhaps 1.5 weeks or more, from a charged car battery (if it worked at 12 V, that is). Quite amazing.
MK14:
Just in case anyone was interested in what I was talking about before (that broke prematurely, after 1.5 or 2.5 years approx, due to ruptured glass package) is interested in those long life, perhaps (10 years +) 25,000 plus hours life, tungsten filament (incandescent), now relatively old fashioned 40 watt light bulbs. An old packet of them, are reviewed, here:

BrokenYugo:
That incandescent is mostly relying on the cheap trick of running the filament colder, 230 lumens is more like what one would expect from a 25 watt bulb (on the high end), a 40 watt bulb is usually ~400 lumens.
MK14:

--- Quote from: BrokenYugo on April 10, 2022, 04:47:22 pm ---That incandescent is mostly relying on the cheap trick of running the filament colder, 230 lumens is more like what one would expect from a 25 watt bulb (on the high end), a 40 watt bulb is usually ~400 lumens.

--- End quote ---

I don't think I realized that, at the time. Because they cost me a small fortune. It was probably something like a couple of decades ago. It was perhaps £10 or £20, for around 2 or so, when a £1 or so, could probably buy one or even a pack of 5 or 6, standard bulbs.

I absolutely hated changing the light I mentioned above (needing a ladder, screw-driver, and lots of fiddling with). So, was very pleased with the deal.

Anyway, although a (approx) 450V rated tungsten filament bulb, was what I bought for the 240V AC mains (at the time, now supposedly 230 V AC, by jiggery pokery with the specifications), as far as I know. High voltage bulbs, were not available for sale, anywhere I looked, at the time. But also, I wasn't looking, as I didn't realize that method, was what they were using, to create the super long life bulbs.

TL;DR
Yes, I was probably partly conned out of some money, at the time. But it was well worth it, as a couple of decades ago, bulbs would burn out after around 1,000 hours (2,000 hours, with some harder to get, longer life ones). Which meant fairly frequent bulb changing. I remember (could be mistaken), it felt like one or two bulbs would burn out (they seemed to LOVE burning out, as you switched them on, when cold, sometimes with an annoying bang, although I think they later introduced statuary internal fuses for the bulbs, to stop them blowing out fuses, in your UK fusebox (old days, going back a number of decades), when they blow, and arc inside, temporarily using a huge current and hence potentially (sorry about the pun) blowing a physical wire fuse in a box, which now nowadays, is often circuit breakers, which just have to be flipped back on).

TL;DR attempt 2, to actually be short
Yes conned, but hated using ladder and fiddly fitting, so pleased as 1,000 hour bulbs pop rather frequently.

EDIT:
In case anyone is wondering. There were old CFL types of bulbs available, a while back. But the early ones, tended to be rather expensive, take ages to be at anything like full brightness (e.g. a minute or so), a bit hard to buy, massive/heavy, light quality wasn't that good, sensitive to breaking if turned on/off too violently (I've broken some that way), and unsuitable for electronically controlled lamps (i.e. dimmers, some types of mains timers (i.e. TRIAC etc ones) or light level automatic (when dark) switchers etc).
BrokenYugo:
I wouldn't call it a con, they have legit applications, which you used one in by the sounds of it. Definitely a bad idea for general purpose lighting in easily serviced fixtures though.
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