The Classic Wall Mount is reminicent of classic Craftsman era designs. Provides top light illuminating the shade. Tempered clear glass diffuser. Fully enclosed. For standard 'A' incandescent lamps up to 100W. 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.