There are 20 of Pre-Programmed Static Colors, and the brightness of color can be changed.
The controller has an Auto-Saving function, it save the last setting you used. There is no turned on, off button.
It is the smallest RGB controller on the market, but it is also one of most powerful controller on the market!!
The max output current is 12A/144W, you can control 20m of 30LED/m or 10m of 60LED/m. (Recommended to connect in parallel for each 5m roll).