1 ft x 4 ft, Lens Shape Center Basket, 4000K, 1,918 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 15 W, Color Rendering Index 82, 120 to 277V AC, Lighting Certification DesignLights Consortium (DLC) 5.0 Premium, Dimmable Yes, Emergency Battery Backup No, Series 2BLTR