Philips 18.5w @ 2000 lum that i bought for my apartment are around 10$ here
The 360* ones are 18-20$ but less bright 15w @ 1500lums I think
Now with added coil whine
Jaxson Rivera
Dominic Clark
I have an alternative hypothesis: user bought Nichia or otherwise educated enough purchase?
My ~$2-3 Chinese LED also virtually don't flicker, not even if I put a camera on them. No Nichia-tier CRI on those, though. They're just reasonable and not very blue, but not as great.
Kayden Wilson
>cancerous blue light
ies.org
Blake White
How much do LEDs cost locally for $2-3 shipped form china LEDs to make sense?
Dylan Harris
>light in the visible spectrum causes cancer now
Evan Collins
I have no idea where you people buy your bulbs, maybe you just don't notice 60 Hz flicker, but here in Europe almost every model flickers at 50 Hz, although it's been getting better in the past few years. It doesn't even matter if it's a good brand, Philips, Osram, IKEA, they all fucking flicker. The only ones that don't I bought at Aldi and Obi and they're unbranded.
Cooper Davis
Usually $8-15, even at Ikea. Other shops cost more; they're mostly selling the comparable LEDs for $15-25.
I checked the US Ikea, they're a bit cheaper but also ~$7-13. Maybe you got cheaper discounters, but are the LEDs there good?
Bentley Brooks
At least try reading the article, user.
>What is often missed is that the total energy in a wavelength band is more critical than the height of the spectral peak. Specifically, it is the area under the curve (width x height) that we should be more concerned about. For example, if you define “blue content” as the fraction of light between 400 nm and 490 nm compared to light between 400 nm and 700 nm, then for the sources above, the blue content of the LED is 16.6%, the fluorescent is 18.4%, and the HID is 24.0%.
>Now let’s try to tackle the real reason for this post – the total amount of blue light we are exposed to from LEDs. Our visual system is adapted to withstand exposure to sunlight for about 10 hours/day, every day for roughly 70-80 years.
>Below is the comparison between indirect sunlight (10,000 lux) and commercial/retail lighting (400 lux). Notice the blue squiggle at the bottom? In the range of 400 nm to 490 nm, indirect sunlight exposes us to 27 times as much blue light as LEDs at typical indoor lighting levels.
Lucas Howard
If it wasn't clear enough: I imported them from China, at $2-3 or so a piece.
I have no clue what Aldi or Obi sells, but it sounds like it's probably the usual rip-off with the worst LEDs from China that would be sold for $1 or so.
Justin King
Most of the ones I operate now are variations on pic related.
Not as good in terms of CRI as user's Nichia's [and surely not the absolute optimum in power efficiency vs a high quality single chip], but they are cheap, useful and do not flicker. "Good enough", really.