Surface mount is standard unless followed by "recessed mount" suffix.
Projection for surface mount: 2 3/4"
Projection for recessed option: 1 3/4"
Distance from top to center of wiring box for 0817-S: 8 3/4"
Distance from top to center of wiring box for 0827-S: 13 3/4"
Weight standard lamping for 0817-S: 4 Lbs.
Weight standard lamping for 0827-S: 6 1/2 Lbs.
Dimensions, finishes, lamping and voltage are standard as listed unless special order options are requested.