These pendants are cool. But by the time our contractor installed them, he found out one was defective. It was beyond the return date but reading the small fine print I discovered the vendor had a one year guarantee. After contacting wayfair several times, they contacted the company but there was no response. So now I will have to purchase another pendant to complete the three.  Lesson?  Try to check your product within the return time limit.  5 stars for product, 0 star for Delacerda warranty.   Wayfair tried to do what they could.