[antonok]

fwiw, LEDs with higher CRI will generally be less power efficient, so the premium category has a 3-way tradeoff between brightness, power, and color quality. It's common for high efficiency LED lightbulbs to be much worse at illuminating red objects.

[SPICLK2]

True enough, although CREE's XT-E offers 140 lm/w at a CRI of 80 and a colour temp of 3000k.

I assume this product has not met any regulatory requirements, because selling a ~600W hot plate suspended at eye level cannot be legal.

These LEDs are just the ones found on imported LED strips. Adjustable colour temperature is a novelty that is not compatible with LED efficiency or lifetime.

[camtarn]

CRI of 80 is not great. From my reading, you want CRI 90 if you want light that's pleasant to exist in.