Beautiful lamp, great customer service as always by Wayfair. However, the item is listed as dimmable, which it is, but it hums quite loudly with a lutron dimmer switch applied at any power but 100. These are very bright lights and most will probably want a dimmer and the fact that jt very audibly hums when dimmed is a let down.  For reference the Lutron switch I bought is Model TGCL-153PR. I am going to try one that the questions and answers has identified as being compatible and hope the hum stops.