The RAB Lighting HID-45-EX39-8CCT-BYP/5SP/480V is a 45W CCT-selectable LED post-top HID replacement lamp with an EX39 mogul base, offering field-selectable 3000K, 4000K, or 5000K color temperatures and output ranging from 5,850 to 6,300 lumens at 80 CRI. Designed for ballast bypass on 277480V systems, this Type B lamp is compatible with post-top area and decorative outdoor fixtures on municipal, commercial, and campus installations. A 50,000-hour rated life and efficacy up to 140 LPW deliver measurable energy and maintenance savings over legacy HID sources.