Superior Lighting Q&AAnswer
Oct 07, 2025 - 07:42 PM
MR16 stands for “Multifaceted Reflector”, and the number 16 indicates the bulb’s diameter, 16 eighths of an inch, or 2 inches across. The term describes both the shape and optical design of the bulb, which uses a mirrored reflector to focus light into a precise beam. MR16 bulbs are commonly used in track lighting, spotlights, display cases, and recessed fixtures where directional, high-intensity lighting is needed. Available in halogen and LED versions, MR16 lamps offer crisp illumination with excellent beam control and are popular in both residential and commercial accent lighting applications.
