Use two or three fixtures to cross-light an object such as a tree or tall structure for 360-degree visual interest The MR16 Bi-Pin socket lamp base is optimized for Kichler LED drop-in lamps The fixed socket base allows for easy and secure installation A flat lens protects the light source and connection points from the outdoor elements A double O-ring securely holds the cowl in position, which prevents glare and helps shield light. Cowl is adjustable/rotating with a thumb screw lock