Title: Chloe Modern 3-Light Black Semi Flush Mount Chain: N/A. This light is not damp rated. Whether it is dimmable or not depends on the light bulb not on the light fixture itself. If you use dimmable light bulb and a dimmer switch, it will be dimmable. This fixture does need to be hard wired. Assembly is required. Professional installation is recommended. This light can not be installed on a sloped or vaulted ceiling.