Difference Between Analog and Digital RGB/RGBW Strip
Analog RGB/RGBW strips can only be a single color at a time and the dim level is set for the whole strip. Like this:
If your strip can do something like the following picture, it’s a digital LED strip and you should read this article instead. BE WARNED! A lot of sellers often show very pretty pictures with the LEDs being different colors and patterns, often this is wrong or a weird type LED strip. Analog strips can only have one color for the whole length, if you can control the individual LEDs, it’s digital:
