The Westgate Mfg T8-4FT-DIM-18W-35K-C is a 4 ft. 18W T8 LED glass tube lamp suited for direct-wire ballast-bypass retrofits in offices, retail, and hospitality applications requiring warm-neutral light. Delivering 1,900 lumens at 3500K with a 120 beam angle, it wires single-ended (one end N+L) and supports dimmable direct A/C operation on 90140V AC. UL listed with a 50,000-hour rated life and a 5-year warranty. Clear lens, glass tube construction.