The RAB Lighting HIDFA-20S-H-E26-8CCT-BYP is a 5/10/20W field-selectable LED HID replacement lamp with a horizontal E26 medium base for ballast-bypass retrofit applications on 100277V universal voltage. It delivers 800/1600/3200 lumens with selectable CCT (3000K/4000K/5000K), CRI80, and up to 160 lm/W efficacy, providing three wattage and output tiers in a single clear-finish lamp optimized for horizontal burning positions. Constant current driver and a 50,000-hour rated life reduce maintenance demands in commercial and light industrial luminaires.