Glass Bypass/Line Voltage DBL Ended T8 8FT 40W-5500lm 5000K 80CRI FA8 120-277V. Solid state replacement for high output 8ft T8 and T12 fluorescent lamps Direct replacement of single-pin LED slimline with HO-equivalent lumen output. Double-ended single contact base – same as T8 and T12 lamps. Simple installation; bypass ballast, connect line voltage to single-pin sockets. Frosted lens for uniform diffuse appearance. No ballast or external driver required. High Output: 3,500/5,500 lumens; 140/128lpw. Instant-On with no warm up like fluorescents. Integral 120~277V drivers provide easy installation. Existing fixture maintains original UL compliance per UL1598C listing. Does not operate on emergency backup.