Plaster-In LED Profile Trimless LED Channel with 10.5mm Strip Compatibility, Perforated Flanges and 25mm Deep Cavity

The K148 is a purpose-built plaster-in (mud-in) LED profile designed to disappear completely into the ceiling build. Unlike standard recessed channels that leave a visible trim edge, the K148 ships with perforated mounting flanges on both sides — simply screw or glue the flanges to the dryboard, skim plaster directly over them, and the finished result is a pure slot in the ceiling with no frame, no bezel, no visible profile. It accepts LED strips up to 10.5 mm wide.

Engineered around a deep 25mm internal cavity, the K148 gives the strip real room to sit, bend, and breathe — a big advantage over shallow channels that force strips flat and trap heat. The larger aluminum body also acts as a proper heat sink, pulling heat away from the strip and keeping output and color stable across long, continuous runs. It is offered with PC cover, plastic honeycomb cover, aluminum honeycomb cover, and grille cover, so the same trimless housing can be tuned for soft wash, glare control, or directional beam.

Because the K148 is meant to be buried in plaster, it is spec'd for long runs and large projects — airports, atriums, hotel corridors, high-end residential feature ceilings — where a clean unbroken line matters more than quick retrofit. The kit includes end caps and matching honeycomb cover; mounting clips are not required since the perforated flanges are bonded directly into the plaster layer.

Typical applications:

• High-end residential feature ceilings and stairwell slots
• Hotel lobbies, corridor runs, and atrium lighting
• Office atriums and long uninterrupted ceiling lines
• Retail flagship stores and exhibition spaces
• Projects demanding a true zero-trim, architectural look

Key features:

• Max LED strip width: 10.5 mm
• Perforated side flanges for direct plaster skim — true trimless result
• Deep 25mm cavity — more strip clearance, better heat escape
• Optical covers: PC / Plastic honeycomb / Aluminum honeycomb / Grille
• Built for long continuous runs and large-scale fit-outs
• Kit includes end caps and honeycomb cover
• No visible bezel once plastered — slot-light aesthetic
• OEM and custom cut lengths available

Installation: Screw or glue the perforated side flanges to the ceiling substrate, skim plaster over the flanges, insert the 10.5mm LED strip, and close with the chosen optical cover.