“MR” refers to Multi-faceted Reflector, which produces a softer edge to the area of illumination than a smooth reflector. Numbers refer to bulb face diameter in eighths of an inch.
MR-11 = small, 11/8" dia (1-3/8");
• Approximately 3,000 hour life
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm.
www.P65Warnings.ca.gov