BASES OPTIONAL can be used for post top light fixtures PP10 $13.95 (4"W x 3"H) 3" Fitter-Brass Mini Base for Flat Surface Mounting. Shown in Black Finish. PP11 $18.95 (8"W x 3"H) 3" Fitter-Brass Base for Flat Surface Mounting. Shown in Black Finish.   PP13 $12.95 (5 7/8"W x 3"H) 3" Fitter-Cast Aluminum Base for Flat Surface Mounting. Shown in Black Finish. LIMITED TIME SALE! PP12 $9.99 (9 1/2"W x 5 1/2"H) 3" Fitter-Brass Base for Flat Surface Mounting. Shown in Verdi Finish.