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I dont think this will work if it is ceiling mounted because it reflects light coming from above.
Sorry, there was a problem. Please try again later.No, the design is like a saw blade, with the parts that the light shines onto being angled slightly downward. Any light coming from the sides or the top are mitigated, thus, you must use the protector from below the screen. You will have little to no picture if projected from the top. Perhaps if you mounted it upside down, but I have no experience with that.
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