Lithonia STAK 2X4 4000LM 80CRI 35K COL MIN10 ZT MVOLT E15WLCP 2'x4' LED Center Element Lay-In 4000 Lumens, 80 CRI, 3500K Color Temperature, Curved Opal Lens, Dims to 10%, 0-10V Dimming, 120-277V, 15W EM Self-Diagnostic Battery Pack

PRODUCT FAMILY SPECIFICATIONS
INTENDED USE
Available in 1X4, 2X2, and 2X4 configuration, STACK provides both functionality and efficiency. STACK is the ideal choice for many recessed commercial applications. The wide center basked and curved matte reflector allow STACK to deliver a high quality of light while maintaining optimal performance.

• Less than 2" in depth.
• A high level of configurability allows you to choose the perfect solution for your space.
• Available 0-10v dimming to 1%
• Long-life LEDs deliver 80% lumen maintenance at 60,000 hours

The STACK lay-in delivers low glare, ambient lighting in a popular center-basket design. A typically configured STAK features a Unified Glare Rating (UGR) starting at 16, UGR data available on page 6. The slim profile of the luminaire, coupled with energy-saving LED technology make STACK an ideal choice for renovation or new construction. The STACK lay-in offers a high-quality, cost-effective LED lighting solution for schools, offices, retail, healthcare facilities and other commercial spaces.

CONSTRUCTION
The reflector is finished with a glare reducing matte white paint for improved aesthetics and increased light diffusion. End plates contain easy-to-position clips allowing the luminaire to be securely attached to the T grid. Diffusers are extruded from impact modified acrylic for increased durability. LED boards are accessible from the room-side, and drivers are accessible from the plenum. Standalone embedded controls: Luminaires with standalone embedded controls by SensorSwitch are designed, manufactured, tested, and shipped with the sensor or control device factory-installed. This simplifies design layouts and reduces total installed cost by eliminating field installation of control devices. Networked embedded controls: Networked embedded controls by nLight address the requirements of Luminaire Level Lighting Controls (LLLC). Luminaires with networked embedded controls by nLight are designed, manufactured, tested, and shipped with occupancy, daylight sensors or control devices factory-installed. This simplifies design layouts and reduces total installed cost by eliminates field installation of control devices, while addressing code requirements.

INSTALLATION
With a depth of only 1.9", STACK makes for an easy installation, especially in restrictive plenum applications. STACK fits into standard 15/16" and narrow 9/16" T-grid ceiling systems. Suitable for damp location.

ELECTRICAL
Long-life LED's, coupled with high-efficiency drivers provide superior quality of light and an extended service life. 80% LED lumen maintenance at 60,000 hours (L80/60,000). 0-10 volt dimming driver, dims to 1%.

OPTICS
Volumetric illumination is achieved by creating an optimal mix of light to walls, partitions and vertical and horizontal work surfaces – rendering the interior space, objects and occupants in a more balanced, complimentary luminous environment. A high performance acrylic diffuser conceals LED's and efficiently delivers light in a volumetric distribution.

LISTINGS
CSA certified to meet US and Canadian standards. Damp location listed. IC rated. DesignLights Consortium (DLC) Premium qualified product and DLC qualified product. Not all versions of this product may be DLC Premium qualified or DLC qualified. Please check the DLC Qualified Products List at www. designlights.org/QPL to confirm which versions are qualified.

WARRANTY
5-year limited warranty