In terms of lighting power, the Eurolite PIX-144 RGBW and Eurolite PIX-144 RGB do not differ (I expected a little bit more in terms of lighting power, but this is what you get for relatively low budget light), but here we have real white light, and we also have the option of many more colors in standalone mode - a total of 15 in the Eurolite PIX-144 RGBW compared to only 3 in the Eurolite PIX-144 RGB.
The buttons themselves, but also the entire construction feels more stable. The fact that a light filter is included in the kit is a plus, because it allows for greater flexibility, especially if you use the LED bar for video shooting.
At least for the moment, the system is silent in all modes in the Eurolite PIX-144 RGBW, while the one in the Eurolite PIX-144 emits a specific hissing noise in the full blackout position.