6.5"W x 12" fixed height 6 lbs. Ceiling plate: 4.5"W x 5"L x .375"D, hexagonal. 10.5"W x 13" fixed height 10 lbs. Ceiling plate: 4.5"W x 5"L x .375"D, hexagonal. 10.5"W x 18" fixed height 14 lbs. Ceiling plate: 4.5"W x 5"L x .375"D, hexagonal.