The Westgate Mfg T8-EZX-TB-4FT-12-18W-50K-C is a Type B direct-wire 4-foot T8 LED lamp with selectable 12W/15W/18W multi-wattage output for commercial and institutional fluorescent fixture retrofits on 120277V. The glass tube construction with clear lens delivers up to 120 LM/W at 5000K, bypassing the ballast entirely for reduced long-term maintenance costs. UL listed, damp location rated, with a 50,000-hour rated life.