Inside another doppler radar microwave LED lamp.

This is the most integrated of these lamps I've seen yet. The radar detector is on the same PCB as the LEDs and works very well. It's worth mentioning that these lamps put out a very low level radio signal that is not in any way harmful despite being described as "microwave" energy. That merely relates to the frequency being used.
These lamps still creep me out slightly due to their ability to detect reflected radio signals round corners or through walls. This could result in false triggering in some instances. A primary advantage over the PIR versions is that these could be put inside a light fitting and still be able to see through it to detect movement.

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