MR16 Halogen Bulb w/Reflector - 10W and 20W Models
5.3 mm Pin Spacing
"MR" refers to Multifaceted Reflector, which produces a softer edge to the area of illumination than a smooth reflector. MR number refers to bulb face diameter in eighths of an inch. MR16 = 16/8" = 2" Diameter. Approximately 3,000 hour life