18 watt EarthBulb LED U-Bend is available in 4000K and 5000K with 300 degree beam angle. Great light output and perfect for replacement of T8 fluorescent tubes. This linear tube provides 2200 lumens and has a CRI of 82. This lamp is engineered for high lumen maintenance over its 50,000 hour rated life and exceeds the requirements for DLC. To install, simply remove existing fluorescent ballast and direct wire the line voltage to one end of the lamp. DLC listed.