The Lighting Quotient showed its first LED architectural lighting fixture at the 2010 annual conference of the American Institute of Architects.

It will feature the latest Philips Lumileds LUXEON Rebel emitters with advanced Lumiramic phosphor technology. The latest generation of LUXEON Rebel LEDs provides crisp warm white light with greater color consistency and higher efficacy, enabling a new level in LED luminaire performance.

The concealed cove fixture, developed with the company's fraqtir optical technology, throws a clean, even and warm wash of white light in an asymmetric pattern that has not previously been possible to achieve with LEDs.

The fraqtir luminaires feature an impact-resistant acrylic cover lens and extruded aluminum heat sink (housing). The optical housings can be interlocked together in continuous rows to aim as one. Aiming is adjustable and lockable. High efficiency drivers can be remotely mounted or integral to the luminaire, with dimming optional. The two-piece heat sink features a light engine assembly that can be removed for service or upgrade.

The extruded aluminum heat sink was designed specifically to conquer the thermal challenge of tight spaces and elevated ambient temperatures inherent in architectural cove lighting applications. Heat is conducted away from the removable light engine assembly to the outer housing extrusion, where an emissive coating promotes free convection and ensures long life, excellent lumen maintenance and color consistency of the LED emitters.