1021 Lytecaster 5 Inch Opal Disk Diffuser Wet Location Reflector Trim features a pressed and blown 3-layer cased opal glass shade with hydroformed aluminum semi-specular reflector. Diffuser twists into reflector trim. One 120 volt, A-type medium base incandescent/halogen/LED or G24q compact fluorescent lamp is required, but not included. Lamp type and wattage dependent on frame-in kit/trim combination. UL listed. Suitable for covered ceiling wet locations including showers and spas. A complete fixture includes a frame-in kit and a trim kit, sold separately.