2 ft x 4 ft, Lens Shape Flat, 3500K, 4,800 lm, 130 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 37 W, Color Rendering Index 80, 120 to 277V AC, Lighting Certification DesignLights Consortium (DLC) 4.4, Dimmable Yes, Emergency Battery Backup No, Series LBR