I love the ambience of the salt lamps and have several at my home.  I ordered one for my vacation home. and unfortunately, the light didn't work.  Wayfair replaced it right away.  This one "sweated" some during the winter and my vacation renters moved out to the garage.  I'm thinking it might have been due to the heating possibly as I've never had that issue before nor have I since I returning here with the humidistat adjusted properly and air conditioning.