The RAB Lighting HIDFA-360S-EX39-8CCT-BYP/480V is a 360/270/180W LED post top HID replacement lamp with an EX39 mogul base, engineered for high-wattage retrofit of area and roadway luminaires operating on 277480V systems. The three-step wattage selector delivers 30,28059,004 lumens with field-selectable CCT (3000K/4000K/5000K) and 80 CRI, achieving up to 160 LPW efficacy. With a 50,000-hour rated life and white finish, this lamp suits municipal streetlight and large-area post-top retrofits where 480V infrastructure is already in place.