2700K CCT means that the light from the diode is being mostly absorbed and re-emitted by the yellow phosphor. The lamps people have trouble with are those with

2700K CCT means that the light from the diode is being mostly absorbed and re-emitted by the yellow phosphor. The lamps people have trouble with are those with a CCT of 4000+K, which emit several times more short-wavelength light for the same perceived brightness. Incandescent lamps are typically ~2500K CCT