SK6812-XX digital pure white led is the SK6812 3-channel IC packaged with the 3 same cct white led chips inside the 5050 led.the emitting color is the white color dimming.
SK6812: The default is the chips with IC integration
-xx: White Color
BW Blue White 6000-7000K
NW Natural White 4000-4500K
WS Warm Sunlight 2700-3000K6