Westinghouse T8 (12 Watt) Cool White (4000K) G13 (Medium BiPin) Base Dimmable LED Linear Light Bulb 50280.The 12 watt linear ballast bypass LED can be used anywhere a 3 foot T8 or T12 fluorescent bulb is used. This ballast bypass LED operates with direct line voltage, no ballast needed. Knowledge of fluorescent lighting fixtures and electrical systems is required for ballast bypass wiring. Non-shunted tombstone sockets are required.This technologically advanced linear LED provides optimized general illumination and excellent light distribution. It's specifically designed to eliminate shadows and dark spots in light fixtures, while focusing light downwards where needed. Energy-efficient illumination for everyday tasks in residential, industrial, hospitality and commercial applications.Providing brightness and color quality comparable to fluorescent bulbs, this ballast bypass LED turns on instantly without flickering, and lasts up to 2.5 times longer. It reduces maintenance costs and provides up to 56% energy savings over linear fluorescents.Westinghouse is a trusted global brand. We know lighting and offer products with exceptional quality, reliability and functionality.