Excellent dimmable LED candelabra bulbs


#1

Originally published at: https://boingboing.net/2018/03/21/excellent-dimmable-led-candela.html


#2

Agreed that 6k or whatever they started out at is definitely harsh, but I feel they overcompensated. Every LED bulb I can find is 3k or less when what I really want is a 4500, or even 5k.


#3

Early LED bulbs had a harsh whitish blue color that made every room look like a 7-Eleven at 3am

That’s so well put.


#4

Hmmm! My mother’s dining room has a weird old chandelier with about 20 candelabra bulbs. I was wondering, last time I visited, whether there was an affordable way to replace them all.


#5

If this is the same one, it looks a little bulkier than incandescents:

but not as bad as what I have seen in the stores here.


#6

#7

I feel they overcompensated

Very good point. I do want warmer LEDs, but at the moment the ‘warm’ LEDs available are more kitch than cozy. Like a parody of an incandescent bulb.


#8

Some of those are really trying to mimic the old-old-school carbon filament bulbs, which can be neat when used appropriately. I have one of those retro-style bulbs in a stairwell light, and like it there. For table lamps and such, though, I’ll stick with 3000-3500°K, and that’s what I’d prefer in a chandelier as well.

It’s definitely a good idea to look before you buy with LED bulbs, given the wide color temperature choices available.


#9

Isn’t it odd how higher color temperature = cooler white? Anyway, the early LED bulbs were nightmarish; they felt like a light that, though bright, somehow provided no real illumination.


#10

I had to look up halogen lights to see what temperature they are. Because for reading I still like my old halogen bulbs ~3000k.

nb cool vs warm dichotomy is because the “temperature” rating is all about the peak color emitted by black body radiation, so higher temperature = higher frequency =more energy photons. But “Warm” vs “cool” is because until recently, most man made lighting, from fire, to gas mantles, to incandescent light bulbs, were black body radiators, were hot, but were relatively low, yellowish temperatures. Blues and greens were only seen in the reflected light from objects that had absorbed the reddish wavelengths. And they were mostly at ambient, or “cool” temperatures. So we associate the red end of the spectrum with “warm” and the blue end with “cool”.


#11

LED filament is one of my favorite technologies to completely pop up out of nowhere.


#12

I love them too, but I wonder if they’re truly LEDs or are they something more like electroluminescent wire? One thing I’ve noticed (and liked) about the filament bulbs is that they don’t need ginormous heat sinks.


#13

They are LEDs. Multiple LEDs per filament, all lined up. It’s not the blue light from the LEDs that we see, it’s the white light from the phosphor that is re-emitted after absorbing the blue light. The cool thing about the filaments is that they take the light coming off the LED, which leaves a flat surface with about a 60 degree spread, and emits it in all directions.


#14

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