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Title: was mine defective?
Review: The one I ordered works, but the plastic nub in the rear of the unit I received has a slightly-flawed location. The nub is intended to insert into the ground hole of your recepticle (outlet). My nub is slightly too high, preventing it to be plugged into a top outlet -- because of this nub, it'll only work in the bottom outlet. I see little reason for this plastic protruding nub to exist in the first place...
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