I see some questions from Alan ,and i find out the answer
* If you lose 1 led out of the RGB does the pixel go dark with no colours shown or does it just show the other 2 colours.
Once the pixel show with the dead-colour, the the pixel will go dark with no colours shown . For example...
GS8208 is an 8-bit LED Driver IC for RGB Pixels from Genesis Systech. The IC is integrated into the 5050 LED. It incorporates gamma correction giving an effective colour depth of 12 bits for enhanced colour blending, particularly with dimmer colours.