The Quadra-XL LED 4x4 architectural recessed drop lens troffer represents a sophisticated approach to modern ambient lighting, combining sculptural form with exceptional performance. Designed specifically for recessed T-Bar ceiling applications, this architectural-grade luminaire integrates clean lines, a fully luminous diffuser, and a distinctive three-dimensional design that enhances the depth and character of interior spaces. Its broad, uniform light output and multiple lens depth options make it a versatile choice for creating both visually striking and functional environments in offices, retail spaces, hospitality venues, and public areas.
Flexibility is a defining feature of the Quadra-XL. Available in flush mount or drop lens configurations from 1 inch to 4 inches, it allows lighting designers and architects to customize the visual experience to match a room’s proportions and atmosphere. Whether the goal is to add subtle depth to a hotel corridor or to make a bold statement in a corporate lounge, the fixture adapts seamlessly. Its precision-crafted drop lens sits flush with the ceiling plane, concealing all visible hardware to maintain a clean, uninterrupted ceiling surface. The luminaire is suitable for both insulated and hard ceiling installations, and with the optional drywall mounting kit, it integrates easily into various architectural conditions without compromising its crisp edge definition or uniform output.
Performance and longevity are core strengths of this 4x4 luminaire. Powered by high-efficiency LED modules and precision drivers, the fixture achieves L80 performance beyond 60,000 hours and a calculated L70 lifespan exceeding 238,000 hours—ensuring consistent light quality and minimal maintenance for years of operation. The opal white acrylic diffuser lens delivers perfectly even illumination across the entire surface, eliminating glare, shadows, and visible LED pixelation. This guarantees a smooth, balanced light ideal for workspaces, lounges, and retail settings where comfort and appearance are equally important.
The Quadra-XL supports a range of optional features that enhance both functionality and customization. Designers can specify tunable white technology, allowing dynamic adjustment of color temperature from 2700K to 6500K to support circadian-friendly lighting design. Emergency battery packs and wireless control options such as Casambi further expand its adaptability for smart lighting environments and critical applications. With lumen packages ranging from 8,000 to 16,000 and an efficacy of up to 115 lumens per watt, the fixture offers performance flexibility suitable for a wide array of commercial and institutional installations.
Installation and durability are ensured through meticulous engineering. The die-formed steel housing, finished in a durable white polyester powder coat, provides structural integrity and aesthetic consistency. An access plate simplifies wiring, while flexible wiring options and Chicago Plenum compliance ensure compatibility with diverse project requirements and building codes. Integral earthquake clips add safety for seismic installations, making the fixture dependable in regions with specific structural standards.
The large 4x4 format of the luminaire (47.75 inches square) gives it a commanding presence in expansive ceiling grids, providing balanced ambient light coverage that complements modern architecture. Every design element—from its flush and drop lens variations to its clean, shadow-free output—reinforces its architectural intent to blend light quality with aesthetic refinement.
Ideal for contemporary offices, upscale retail environments, hotel corridors, and public gathering spaces, this recessed LED troffer transforms ceilings into luminous architectural features. Its combination of visual sophistication, robust performance, and flexible control options allows lighting designers and specifiers to create environments that feel open, comfortable, and beautifully cohesive. The Quadra-XL exemplifies how precision engineering and thoughtful design can work together to elevate ambient lighting into a defining element of modern interior architecture.
https://viscor.com/products/quadra-xl
