The Philips Hue Action Component allows you to change the settings of a certain Philips Hue light. You can specify color and opacity and have to set up the IP address of your bridge, the user ID and the light ID.
You can find the IP address by going to: https://discovery.meethue.com/
Once you have that information, you can find the debugger API simulator under: http://<your_ip>/debug/clip.html
Next you need to find the user-id or username, which you can only get if you “pair” the device by pressing the bridge button once before sending a POST command to the API using the JSON to authenticate: {"devicetype":"my_hue_app#gravio"}
More detailed instruction on how to use the debugger can be found here: https://developers.meethue.com/documentation/getting-started