The JavaScript code linked suggests that it indeed uses 19 levels of brightness and 256 levels of (rotated) hue. [1]<p>[1] <a href="https:&#x2F;&#x2F;github.com&#x2F;mwittig&#x2F;node-milight-promise&#x2F;blob&#x2F;c52d3e4&#x2F;src&#x2F;commands.js#L56-L133" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;mwittig&#x2F;node-milight-promise&#x2F;blob&#x2F;c52d3e4...</a>