Lithonia Lighting - Lithonia STAKS-2X4-ALO6-SWW7 2x4 LED Center Element Lay-In Troffer, Selectable Lumens/CCT, 120-277V

Recessed Center Element Lay-in Series, Switchable, 2FT x 4FT, Switchable lumens . 4000LM, 5000LM, and 6000LM, Switchable CCT . 3500K, 4000K, and 5000K Application: Education; Government; Healthcare; Hospitality; Offices & Banks - Features: DESIGN: Wide 7. lens and curved reflector give STACK a high-end aesthetic.; ENERGY SAVINGS: Ultra-efficient LEDs and Drivers lead to maximum energy savings; DIMMING: 0-10V dimming allows for you to get the brightness of your space just right.; VOLTAGE: MVOLT . functions with 120v or 277v. Easy installation in T-grid ceilings, Surface mount boxes, or, drywall grid adapters.; HOURS OF LIFE: 80% LED lumen maintenance at 60,000 hours (L80/60,000); INSTALLATION: Shallow (<2.) depth allows for mounting in constricted plenum spaces; BATTERY: No emergency backup at this time; WARRANTY: 5-year limited warranty - Standard: CSADLC Standard - Mounting: Recessed