Comments by "Mikko Rantalainen" (@MikkoRantalainen) on "Is Philips discontinuing their coolest warmest product?" video.

  1. I remember seeing some research done that suggests that human eye considers more reddish light as "white" when the lux level goes down. And the same works for higher light levels. That's why 6500K daylight doesn't feel blueish but if you had 6500K 3W white led bulb, it would look light blue instead of white. As such, it makes perfect sense to have the color temperature go towards 2000K when the light is dimmed. That said, it appears to me tht most people cannot even notice the difference between 2700K and 4000K lights, nevermind the horrible CRI 80 Ra color reproduction. Unfortunately, I have good color vision and I cannot stand low quality lights. As a result, I still keep using actual halogen lights and hoping for good enough led lights in the future. I would want each and every bulb box to contain accurate spectral distribution graph so that I could easily avoid wasting my money on poor quality lighting. The closest to acceptable LED lights for my eyes have been those filament LED bulbs with very heavy phosphor coating which I guess generates smoother spectral distribution. For the same reason, I cannot stand those LED lights with fullyadjustable color because the spectral distribution is typically so spikey resulting in so poor color reproduction that even the skin of my own hands look weird.
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  2. I personally prefer 0-10 V dimmer switches that allow pushing full AC voltage to the lights and then the light implements the dimming without super complicated circuitry. Of course, the standards are still very lacking for that plus the need for 5 wires is a problem for most users.
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