My wife picked up this light fixture at a sample sale. We had some electricians install it a while ago while we were having other work done on the apartment. The electricians threw out the box and paperwork, so I don't know the brand or model number. The glass "bowl" spins freely in the two metal side supports. You can also slide the bowl "back and forth" in the supports, but you can't slide it far enough to slide out of the supports. I can't move the supports at all. They don't just move out of the way to let the bowl fall out. I have tried turning the entire fixture, and I have also tried just pulling the fixture down. There is about one and one half inches of space between the ceiling and light fixture. Any advice would be greatly appreciated.