Mark Lighting WHSPR LCTR 2X2 80CRI 40K 4000LM MIN10 MVOLT SWC ZT2'x2' Whisper LED Troffer with Luminous Center, 80 CRI, 4000K, 4000 Lumens, Constant Current Dimming to 10%, 120-277V, Soft White Acrylic Shielding, 0-10V

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Model: MARK-WHSPR-LCTR-110925

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Technical Spec

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Technical Spec
PRODUCT SPECIFICATIONS
Housing

Nominal 1'x4', 2'x2' or 2'x4' housings fabricated from 22-gauge, cold-rolled steel.
Air return option available.

Door Frame
The hinged door frame is constructed of extruded aluminum center and side rails with cold-rolled steel end caps capturing three individual optical panels to form a single unit. The hinged door frame can be positioned on either side of the fixture housing to provide easy room side access for maintenance.

Finish
Matte white polyester powder paint standard for trim. Consult factory for custom colors or specify RAL colors from Architectural brochure.

Inner Housing Reflector
Formed steel with highly reflective white polyester powder paint.

Lenses/Shielding
Center Panel: Soft-White Acrylic (SWC) or Micro-Prismatic Conical De-Glaring
Acrylic Lens (YBC) or Hexagonal De-Glare Lens (GHC) options available.
Side Panels: Soft-White Acrylic only.

Mounting
Recessed ceiling for grid or inaccessible sheetrock ceiling.
Grid: Accommodates 9/16" slot grid or 15/16" inverted tee or 9/16" inverted tee.
Sheetrock: Use a Drywall Grid Adapter (DGA22, DGA24, or DGA14WHS).
Ordered separately.

LED Components
Multiple lumen packages available with 2700K, 3000K, 3500K, 4000K and 5000K CCT in either 80CRI or 90CRI. The Acuity Brands circuit boards use a precise binning algorithm which creates a consistent color temperature from board to board. The color a variation of no greater than a 2.5 Step MacAdam (2.55DECM) along the black body locus from board to board.

Electrical
Long-life LEDs, coupled with high-efficiency drivers, provide superior quantity and quality of illumination for extended service life. 90% LED lumen maintenance at 60,000 hours (L90/60,000).

Dimming Drivers
Factory tuned constant current electronic dimming driver is standard.
Flicker free dimming available down to <1%. LED drivers perform within the recommended operating areas for flicker as a function of frequency and modulation (%) IEEE Standard 1789-2015 (IEEE Recommended Practices for Modulating Current in High-Brightness LEDs for Mitigating Health Risks to Viewers), in typical operating conditions at representative dimming levels.
Electrical specifications at maximum driver load: PF > 0.9 and THD <20%. Meets FCC Title 47 Class A or Class B. Other available drivers include Lutron, DALI, and DMX protocol drivers. All drivers are RoHS compliant.

Controls and System Networking Options
Optional integrated nLight controls make each fixture addressable - allowing it to digitally communicate with other nLight enabled controls such as dimmers, switches, occupancy sensors, and photocontrols. Connection to nLight is simple. It can be accomplished with remote nLight AIR wireless or through standard Cat-5 cabling. (cabling "by others") nLight offers unique plug-and-play convenience as devices and luminaires automatically discover each other, while nLight AIR is commissioned easily through an intuitive mobile app.

Emergency Battery (Optional)
Integral emergency battery (E10WLCP) for 90 minutes of operation. Emergency battery pack, 10W, Linear Constant Power. Certified in CA Title 20 MAEDBS.
Remote generator transfer device (BGTD) works in conjunction with an auxiliary generator or a central inverter system to power fixtures for safe egress lighting.

Voltage
120 thru 277v/50-60Hz: 347v/50-60Hz (optional)

Ambient Operating Temperature
-20°C (-4°F) to +25°C (+77°F).

Ambient Operating Humidity
90% relative humidity non-condensing maximum.

Environment
Suitable for damp locations. Indoor use only.

Certification
CSA certified to meet U.S. and Canadian standards (UL1598 and UL8750). This product is IC rated. Chicago plenum rating (option) available.
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.
Fixture Weight (Without emergency or packaging)
1x4: 22lbs.
2x2: 28lbs.
2x4: 38lbs.

Government Procurement
BAA -- Buy America(n) Act: Product qualifies as a domestic end product under the Buy American Act as implemented in the FAR and DFARS. Product also qualifies as manufactured in the United States under DOT Buy America regulations.
BABA -- Build America Buy America: Product qualifies as produced in the United States under the definitions of the Build America, Buy America Act.
Please refer to www.acuitybrands.com/buy-american for additional information.

Warranty
5-year limited warranty.

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