17 watt EarthBulb direct wire LED linear T8 eliminates the ballast for maximum energy savings. 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. To install, simply remove the existing fluorescent ballast and direct wire the line voltage. Direct wire quickly, no lamp holder modifications necessary, just run the black (load) to the one end and white (neutral) to the other. Operates on 347V.