Hi,
I’m looking for a reliable RGB controller that has following functions via Homey:
ON/off (duh) 
Dimming (steps 5-10 percent)
Color changing of the attached strip
Do you guys have any suggestions?
Thanks in advance
Did you try to search the forum like is stated in the welcome post?
There are countless topics already on this subject. (there are no controllers that can’t do what you ask)
have a look at the Shelly devices - Wifi which i think is my preference at the moment, after less that 100% reliability with zwave and zigbee devices missing on or off commands
I just got a few and they seem to work fine, they are not expensive, and freight was good price too
https://shelly.cloud/wifi-smart-shelly-rgbw-2/
