Wise Downlight Lens - 29mm, 50° Beam Angle

The Wise is a 29mm diameter downlight lens with a 50° beam angle, designed to fit recessed lighting fixtures and modify the light spread from a concentrated spot to a broader, more diffuse distribution. Made from transparent optical-grade plastic, the lens measures 14mm in height and sits within the aperture of compatible downlights to shape the light output without requiring additional filters or attachments.

Used primarily in ambient lighting applications where uniform illumination is needed across larger areas, the 50° beam angle suits living rooms, open-plan offices, hotel lobbies and retail spaces where harsh spotlighting would create unwanted contrast. The lens spreads light more evenly than a narrow-beam alternative, reducing the need for multiple fittings to cover the same floor area. It integrates with recessed downlights that accept 29mm lens accessories, typically via a friction fit or clip mount depending on the fixture design.

The clear plastic construction allows close to full light transmission while diffusing the beam edge, softening the transition between lit and unlit areas on walls and floors. At 14mm tall, the lens adds minimal projection to the downlight aperture and does not extend below the ceiling plane in most recessed installations. The plastic material is lighter than glass equivalents, simplifying handling during installation and reducing the risk of breakage if dropped.

Product Manual

What downlights is the Wise lens compatible with?

The lens fits recessed downlights with a 29mm aperture or lens mount. Compatibility depends on the specific downlight model — check the downlight's specification or manual to confirm it accepts 29mm accessory lenses before ordering.

What's the difference between a 50° and a narrower beam angle?

A 50° beam angle spreads light across a wider area than narrower options like 24° or 36°, reducing the intensity at the centre of the beam but covering more floor space per fitting. This makes the 50° lens better suited to ambient lighting rather than accent or task lighting.

Does the lens reduce light output?

The transparent plastic allows most of the light to pass through, but some transmission loss occurs compared to an unfiltered downlight. The trade-off is a softer, more evenly distributed light pattern without the hard-edged spot typical of bare LED downlights.

Can the lens be used in fire-rated downlights?

This depends on the specific downlight's fire rating certification. Adding accessories to a fire-rated fitting may void the certification unless the accessory is listed as compatible in the downlight's documentation. Consult the downlight manufacturer before installing the lens in fire-rated applications.