Note: Add series prefix to bracket ordering number.

Example: AL-01-R-4 designates a quad bracket
with round hub to fit a AL-01 Series fixture.

Prefix	Fixture Depth	A	B
R-4, B-4	6-1/2"	2-3/8"	7"
R-4, B-4	8"	2-3/8"	9"
R-4, B-4	10"	2-3/8"	12"