This document specifies requirements and test methods for operating lights used in the dental treatment and intended for illuminating the oral cavity of patients. It also contains specifications on the instructions for use, marking and packaging. This document applies to operating lights, irrespective of the technology of the light source. This document excludes auxiliary light sources and those intended for patient contact, for example, from dental handpieces and dental headlamps, fiberoptic intraoral operating light and also operating lights which are specifically designed for use in oral surgery.