※ Dimmable:This sputnik light fixture is*/-* fully dimmable when used with a dimmable bulb and compatible dimmer switch ※ Easy install:The arms are all come pre-wired,you need to screw in each of the arms into the center ball and thread the main wire through the extension rods, then install the fixture into a ceiling box. ※ Swivel Canopy - canopy features a durable swivel to mount on vaulted or sloped ceilings.You can adjust the hanging height as per your request.