
I bought 4 of these, the first one out of the box wouldn't screw into the drill chuck as if the threads had become a bit loose. I didn't want to force it so I tried to take it off, with almost no pressure I heard a slight click and the threaded part detached from the body of the light exposing the wires. The metal was slightly thicker than aluminum foil. All attempts to gently move and shake out the metal ended only in peeling and tearing off pieces. The other three fit perfectly and are insanely bright, so a 75% success rate for this brand.

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