ANSI/NEMA FL1 Standard for Flashlight Basic Performance
The ANSI/NEMA FL1 Standard addresses six different performance measurements and establishes consistent definitions and simple icons used to report the following perfomance measurements:
There are four performance criteria that could change with multiple modes or settings on the light: light
output, run time, beam distance and peak beam intensity. Each manufacturer can choose what
information to display in a table. Columns represent the modes available on the flashlight.