12 · Color systems

RGB vs Addressable (SPI)

Both are sold as 'colour changing'. Only one of them can run a chase, a gradient, or a pixel-mapped image.

RGB

One color at a time, everywhere

·The entire line changes color together
·Color, brightness, and simple effects via a compatible controller
·Fewer components, simpler wiring and control
·Accent walls, coves, hospitality color scenes

SPI / Addressable

Independently controlled segments

·Each segment (pixel) takes its own color and brightness
·Multiple colors on one line at the same time
·Chases, waves, and animated effects
·Feature walls, signage, media and entertainment spaces

Bottom line: spec RGB when you need color, SPI when you need motion.

See RGB & addressable strips →

Questions on this topic

What is the difference between RGB and addressable (SPI) strip?

On RGB strip every LED shows the same color at the same time, because the whole run shares three channels. On addressable SPI strip each LED or small group carries its own driver IC and can be set independently, which is what makes chases, gradients, and pixel-mapped video possible. Addressable runs need a data-capable controller and are more sensitive to run length and signal integrity.