LED Retrofit Kit Lumens 4 200 lm Lumens Range 4 000 to 5 999 lm Light Technology LED 120/277V AC Lighting Certification DesignLights Consortium (DLC) Premium Dimmable Yes Emergency Battery Backup No For Bulb Type Integrated LED Overall Height 3 in Overall Length 47 7/8 in Overall Width 23 7/8 in Color Rendering Index 80 Color Temperature 4000K Dimming Method 0-10V Kit Contents End Panel Light Engine Mounting Hardware Side Panel LED Replacement For 4 Lamp T8