ANSI / NEMA FL-1 Guide
Performance of flashlights is measured using new batteries included with the light when purchased or, if no batteries are included, the batteries recommended by the packaging. There are six criteria used: ANSI (American National Standards Institute)
These standards are accredited by ANSI, which is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems, and personnel in the United States. The organization also coordinates U.S. standards with international standards so American products can be used globally.
The ANSI/NEMA FL 1 Standard has been ratified and includes six measures. Each measure is defined, has a test procedure specified, and has an associated icon to use for claims. Standard ratification included voters representing three groups: 1) manufacturers, 2) users, and 3) general interests – one group cannot represent more than 50% of the total ratifying vote.