The product uses a passive infrared sensor, so it doesn't work very well under a lamp shade. Depends on the ceiling fixture... if there is a glass lens it will not work. If it's an open fixture with the socket facing down it should work well.
“An engineer explained to us that hundreds of ear impressions were gathered in the name of research, and while each one obviously boasted its own unique shape and size, one single characteristic remained uniform across the board: the entrance into the ear canal is not a perfect circle, it's an oval.”
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How well is this going to work behind a lampshade or behind a diffuser in a cieling fixture?
I doubt you will get any motion sensing functionality if it is inside a shade or blocked from view of the motion it is intended to sense.
The product uses a passive infrared sensor, so it doesn't work very well under a lamp shade. Depends on the ceiling fixture... if there is a glass lens it will not work. If it's an open fixture with the socket facing down it should work well.
-elights