Hello There, of the 3 lamps broke down one immediately after switching on. Then I contacted the seller with a request to send me a replacement or to find out about how to proceed, because I have the 2 other lamps in use and now reluctant to send back. For 10 days I received a reply to my message. That of 3 goes straight broken, it is in my view Note from quality defect. Otherwise I have to now can not find a difference to other product.