2 ft x 2 ft, Lens Shape Flat, 4000K, 3,419 lm, 109 lm/W, LED, LED Replacement For U-Bend T8, Bulb Included Yes, For Bulb Type Integrated LED, Fixture Ballast Type No Ballast Required, Sensor Type No Sensor, Max. Fixture Wattage 31 W, Color Rendering Index 80, 120 to 277V AC, Lighting Certification DesignLights Consortium (DLC) 5.0, Dimmable Yes, Emergency Battery Backup No, Series LJT