Lexan housing and lens sonic welded for a permanent seal. Legal in either vertical or horizontal mounting position for U.S. and ECE applications. Includes No.421R light, No.421-18 grommet, and No.421-491 right angle, 3-wire plug with an added terminal fordouble filament bulbs. Interchangeable with all competitive units. 6-1/2 in W x 2-1/4 in H.