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the cheaper ones seem to have a blue/white tone whereas the expensive ones have a yellow/white tone and are warmer. This is just normal color temperature and b
by rhizome 9y ago
the cheaper ones seem to have a blue/white tone whereas the expensive ones have a yellow/white tone and are warmer.
This is just normal color temperature and both come in all price points. I have several warm bulbs I got at Target on clearance for $2/2. I think it's just that the warm cheap LEDs are usually sold out, so all that's left are the prison-colored ones.
- cjsuk 9y agoIt's not quite that. The cheap ones use white LEDs which are basically phosphor doped blue LEDs. They have a distinct blue peak which is far brighter than the overall output. The more expensive ones use blue LEDs with separate phosphor outside the LED chip. Philips do that. Seems to result in far better filtering of the blue part of the spectrum.
- rhizome 9y agoThanks, I never looked into the technical reasons behind this.