The RAB Lighting HIDFA-120S-EX39-8CCT-BYP/480V is a field-adjustable 120/90/60W LED post top HID replacement lamp with an EX39 mogul base, purpose-built for 277480V street and area lighting infrastructure. CCT is selectable across 3000K, 4000K, and 5000K, delivering up to 19,753 lumens at 160 lm/W peak efficacy with CRI80 and a ballast bypass driver. Rated 50,000 hours with white finish.