Dimensions:

One Unit: 4-13/16"
Two Units: 8-1/4"
Three Units: 11-11/16"
Four Units: 15-1/8”
Five Units: 18-9/16"

• All units are 3” Diameter.
• This design has a sturdy aluminum base for ease of mounting to a flat surface with two #8 screws, spaced 2” apart