2 ft x 4 ft, Lens Shape Flat, 4000K, 4,200 lm, 124 lm/W, LED, LED Replacement For 2 Lamp T8, Bulb Included Yes, For Bulb Type Integrated LED, Fixture Ballast Type No Ballast Required, Sensor Type No Sensor, Max. Fixture Wattage 39.5 W, Color Rendering Index 90, 120 to 277V AC, Lighting Certification DesignLights Consortium (DLC) 5.0, Dimmable Yes, Emergency Battery Backup No, Series LET24