Without requiring acquisition of new fixtures, 50w LED retrofit kits enable property managers and electrical contractors to upgrade fixtures, including those that are architecturally unique or historical, to LED. Installer removes current lamp, ballast, and reflector; bolts in LED retrofit kit; and directs adjustable LED light engine. Rated LM70 at 50,000 hr, kits replace up to 250 W HID lamps and ballasts and provide directional light source that maximizes efficacy.