The RAB Lighting HIDFA-54S-EX39-8CCT-BYP/5SP is a field-adjustable 36/45/54W LED HID replacement lamp with an EX39 mogul base designed for direct ballast-bypass retrofit in high-bay, industrial, and commercial fixtures. Selectable CCT (3000/4000/5000K) and wattage settings allow on-site customization, delivering up to 7,830 lumens at 145 lm/W efficacy with 80 CRI and a 50,000-hour rated life. The integrated 5-pin sensor port enables occupancy and daylight control compatibility, and DLC listing (ID: PK1M7DYL) supports utility rebate qualification on 100277V systems.