I bought 2 lamps together.  Within a few days a bracket holding one of the heads came off.  I filed a warranty claim with the manufacturer.  The replacement lamp I got was shoddy with the top head not working.  I got a second replacement lamp and while it works, one of the screws of obe the lamp the bracket together was floating around the box.  I got the second replacement to work, but the lamps aren't well made.  On top if that each lamp I've received is slightly different from the original, one has different color brackets and the other has different color switches.