These are great questions @F50 ! The RSSI values for Smart Lighting, compared to one of our security cameras, are much different. Smart Lighting devices operate on a long range frequency. As long as the RSSI remains below -90, there should be no performance issues.
When considering where to place Smart Lighting devices, keep in mind a Motion Sensor uses much smaller batteries compared to the Pathlight or Floodlight Battery which uses 4D batteries. This will give the Motion Sensor slightly less strength in comparison to those powered or larger battery Smart Lighting devices. Please don't hesitate to reach out with any other questions or concerns!