Prismatic Pendant Lens - 18°, 45mm

This prismatic pendant lens is a 45mm diameter optical accessory with an 18° beam angle, designed to control and focus light from pendant fixtures. The lens clips into or screws onto compatible pendant housings to narrow the beam from the lamp source, turning a wide-flood pendant into a controlled spot. The 18° angle sits between narrow spot (10-12°) and medium flood (24-30°), providing focused illumination without creating an excessively tight hotspot.

Typically used in retail to accent product displays, in hospitality to highlight tables or bar areas, and in residential kitchens to direct light onto worktops or islands, the lens suits applications where the existing pendant fitting casts too wide a beam. The prismatic structure of the plastic diffuses the light slightly at the edges of the beam, softening the transition between lit and shadowed areas without scattering light as widely as a frosted or opal diffuser would.

The 45mm diameter is a common fitment for track-mounted pendants, adjustable downlight conversions, and modular pendant systems from Ideal Lux and other European manufacturers. Installation varies by fixture type — some lenses clip into a spring-loaded holder, others screw onto a threaded collar — but no special tools are needed beyond what's required to access the lamp holder itself. The lens is manufactured from clear injection-moulded plastic with UV stabilisers to resist yellowing under prolonged exposure to heat from halogen or high-output LED sources.

What fixtures does this lens fit?

The 45mm diameter is a standard size for many track pendants, adjustable downlight conversions, and modular pendant systems. Check your fixture's specification for lens holder diameter or consult the manufacturer's accessory guide to confirm compatibility before ordering.

What's the difference between 18° and narrower beam angles?

An 18° beam provides a controlled pool of light roughly 60-80cm in diameter when the pendant hangs 2m above a surface. Narrower 10-12° spot lenses create tighter, more dramatic pools, while 24-30° flood lenses spread light more widely with less contrast between lit and shadowed areas.

Can this lens be used with LED bulbs?

Yes. The lens works with halogen, LED, and other lamp types that fit the pendant housing. The UV-stabilised plastic resists heat discolouration from standard LED and halogen sources, though prolonged exposure to very high-wattage halogen lamps may reduce lifespan.

Does the prismatic structure affect light colour?

No. The lens is clear and does not filter or shift the colour temperature of the lamp. The prismatic texture only affects beam angle and diffusion at the beam edge, not the colour or quality of the light itself.