Lighting diffuser disc EUROLITE PMB-4 QCL 15x60° for PAR/matching fixtures

The EUROLITE PMB-4 QCL 15x60° lighting diffuser disc is an accessory designed to modify the beam shape of compatible PAR-style and matching fixtures. It converts the native beam into a rectangular 15x60° pattern to provide a focused, elongated coverage area that is useful for accenting vertical surfaces, narrow stage washes, and architectural lighting runs. The disc mounts directly to fixtures that accept this type of accessory and maintains consistent color and output characteristics when used with QCL-type lamps.

Advantages

The diffuser disc delivers a precise 15x60° beam pattern without altering fixture color balance, enabling controlled directional illumination. Its compact form factor makes it easy to install and remove as production needs change. By shaping the beam into an elongated rectangle, the disc reduces spill light and improves the uniformity of illumination on narrow targets. The accessory is suitable for repeated use in event and stage workflows and integrates with fixtures that accommodate PMB-style modifiers.

Suitable for

• Stage accent lighting where a narrow, tall beam is required
• Architectural lighting for illuminating columns, facades, or vertical surfaces
• Event production for targeted washes and backlight effects
• Studio or set lighting when controlled directional spread is needed

Key specifications

• Beam shape: rectangular beam with approximate 15° by 60° spread
• Compatibility: designed for PAR-style and matching fixtures that accept PMB-type accessories
• Material and finish: lightweight optical construction suitable for lamp heat levels (follow fixture limits)
• Mounting: accessory-mounted to the fixture bezel or accessory holder
• Optical effect: shapes beam to reduce lateral spill and extend vertical coverage

How to use

Mount the EUROLITE PMB-4 QCL 15x60° diffuser disc to the compatible fixture according to the fixture manufacturer's instructions for accessories. Ensure the fixture is powered off and cooled before installation. Align the disc so the longer axis of the rectangular pattern matches the desired vertical direction, then secure it in place. Power on the fixture and verify the beam orientation and coverage, making adjustments to the fixture aim as needed.

Usage recommendations

Use the diffuser disc with fixtures rated for the lamp type in use and avoid exposing the accessory to temperatures beyond the fixture manufacturer's accessory limits. For consistent results, test the disc in the intended lighting setup and adjust distance and aim to achieve the required coverage and intensity.