Triggering actions according to Philips Hue light level sensor

Configuration
1

Hi

So I have a Philips Hue motion sensor, which also includes a light sensor. It works fine and I can see the light sensor in my dashboard. I would like it to trigger certain actions when the light level changes. I thought that the appropriate trigger type should be “state”, however, I’m not sure that I understand how to work with this. For example, I would like that if the light level goes below 13500 (or 15lx), a certain action will be triggered. How do I accomplish this?

Thanks

2 
trigger:
  platform: numeric_state
  entity_id: YOUR LIGHT SENSOR
  below: 13500
action:
  service: notify.YOU
  data:
    message: "It's dark!"
3

Perfect, it works.
Thanks!