These flush mount courtesy lights feature a molded poly housing that is UV and weather resistant. The face is pleasingly styled and the reflector directs light downward. These lights use a standard wedge base automotive type bulb 194. Bulb is easy to change without tools from the front or back. CL versions require a 2 1/8" diameter hole for mounting and the face plate is 2 3/4" x 2 3/4".