The chain is about 6 feet long and is adjustable - if you have a more specific uestion, please let us know.

I have a 15 ft ceiling. Will the chain be long enough?

You are looking at a 16 inch wide model that is almost 2 feet tall glass. That means you a total of 6 feet for the chain + 2 feet of glass = 8 feet. So you will have 7 feet from the bottom of the light to the floor. Which room are you hang these in? If it is above a kitchen island or table, this may still be too high. But an entry way or other applications where people have to walk under the lights, this will be perfect. In the future, we will offer 9 feet long chain. But that is at least a few months away.

No it is not.