I ordered this salt lamp and so happy I did.   I bought the medium size and it is perfect sitting on my bedside table.   It has a dimmer switch,  which I really love and I can turn the light down some before I sleep. It is truely amazing that it is scientifically prooven to clean the air as well! I also got one for a gift for my sister.   I know she will love it as much as I do! I also want to say that it is very reasonably priced.