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LED Surface Troffer with Shallow Elliptical Center Lens

LSTF

The LSTF LED Surface Type F luminaire is a premium architectural LED lighting solution designed for modern indoor environments. Engineered for performance and aesthetics, it features a shallow elliptical center lens that delivers enhanced, uniform illumination across workspaces, corridors, and retail areas. With its clean, surface-mounted design and no exposed fasteners, the LSTF is ideal for buyers seeking architectural LED lighting that balances form and function.

Built for versatility, the LSTF is available in 1x4, 2x2, and 2x4 configurations, making it suitable for a wide range of applications including offices, classrooms, hospitals, and commercial interiors. Its frosted acrylic diffuser and precision-formed indirect reflectors ensure soft, low-glare lighting with high efficiency and wide distribution. The fixture supports standard 0–10V dimming down to 1%, and optional step dimming and emergency battery packs are available for added control and reliability. Whether mounted with chain supports or aircraft cable assemblies, the LSTF maintains a level profile thanks to its offset mounting pads.

One of the standout features of the LSTF is its hinged and latched door frame, which securely holds the diffuser and optics in place. This design not only simplifies maintenance but also reinforces the fixture’s durability. The heavy-gauge steel frame hinges downward and locks with cam latches, ensuring a secure and clean installation. The housing is CNC brake-formed from code gauge steel and finished in white polyester powder coating, with other finishes available upon request. Rated for damp locations and approved to CSA/UL standards, the LSTF is also DesignLights Consortium® qualified for select configurations.

Performance-wise, the LSTF delivers impressive lumen output with options ranging from 3800 to 7000 lumens depending on size and configuration. It achieves up to 159 lumens per watt, ensuring energy efficiency without compromising brightness. The fixture is powered by long-life LEDs and high-efficiency drivers, rated to deliver L80 > 60,000 hours. For buyers seeking tunable white options, the LSTF supports 2700K–6500K color tuning with compatible controls, offering flexibility in ambiance and mood lighting.

Whether you're upgrading an office or outfitting a new retail space, the LSTF surface mount light fixture offers a refined lighting solution that meets both aesthetic and performance demands. Its shallow elliptical center lens, robust construction, and advanced optical system make it a standout choice for architectural LED lighting.

  • Architectural-grade surface mount fixture with shallow elliptical center lens for sleek, modern aesthetics.
  • Hinged and latched door frame allows easy access to diffuser and optics, enhancing durability and maintenance.
  • High-efficiency lighting system with frosted acrylic diffuser and indirect reflectors for soft, uniform illumination.
  • Flexible mounting options including chain support and aircraft cable assemblies with offset pads for level installation.
  • Available in multiple sizes and lumen packages, delivering up to 7000 lumens with standard 0–10V dimming and optional tunable white control.
Country of Origin: Canada

Product Information

  • Product Specifications

    Application : Classroom,Corridor,Nursing Homes,Hospitals,Library,Office,Retail Store,School

    Available Size(s) : 1x4,2x2,2x4

    Brand : VIS

    CRI : 80+

    Certification : ,DLC Listed,UL Listed (C/US),Damp Locations

    Color Temperature : 3000K,3500K,4000K,5000K

    Fixture Type : Surface,Suspended

    Grade : Premium Grade

    Light Source : LED

    Lumen Output : 3800-5000,4000-7000

    Market : Commercial,Education,General Area,Healthcare