First and foremost a great light fixture, if you have a 9ft ceiling you can probably get away with using is stock however if you have an 8' ceiling you will have to adjust the wires.  The system for adjusting the wires is good but extra wire up top needs to be cut and re-connected.  However completely worth the extra work as we really enjoy the fixture.  Recommend putting light on a dimmer to control the halogen lights, we used 40w bulbs and they seem to be the right wattage.