The Beacon Wall Mount is a perfectly scaled, shielded stem wall luminaire. Tempered clear glass diffuser. Fully enclosed for standard ‚¬ËœA' lamps up to 100W. The top light illuminates the shade and provide directional illumination. Clear lamps recommended. For mounting over 4'' octagonal wiring box (by others). Wall bracket provided with four (4) holes @ 90° on 41/2'' centers for mounting to structural supports.