I was concerned with the durability when I read that water could get into the device, so I did caulk them with sealant. However, these are some tough lights! Sadly, they were hit by a snowplow and damaged beyond repair. I brought the pieces into the house, and much to my surprise, when I turned the lights out in the room, the spotlight came right on. I don't know how these were made, but they are made incredibly well if they can sustain being hit by a plow!
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