I'm about to purchase (16) citizen CLU048 1212 3000k
I looked at the same Citizen CoB and got the 2700K 97CRI. It a matter of whether you want more green (lumens) or more red (PPFD).
Both the 3000K and 2700K have the same deep blue (near UVA blacklight) LED dies. The dies on each put out exactly the same amount of photons.
The difference between the two is the phosphor wavelength converter covering the deep blue dies. Just like how a black light illuminates the blacklight poster's phosphorescence, the LED's phosphor, converts the deep blue light to green or red phosphorescence.
You cannot be swayed by the Lumens. Lower CCT translates to less green and more red. A higher CRI translates to more red.
Lumens is a calculation from the LED's measured radiant flux (mWatts) or quantum flux (µMoles) and converted to luminous flux (lumens).
In the translation from actual radiated flux to luminous flux, the red is de-emphasized and the green grossly over emphasized.
Below are the CIE Photopic Luminous Efficacy conversion factors. For example Deep Red lumens must be multiplied by a factor of 15 when converting lumens to mWatts or µMoles. Lime Green (555nm) is multiplied by 1 because it is already
This table show the relationship between various LED colors
And this shows how colors of equal lumens are factored, and how lumens are leveled to the same playing field.