I tested the best headlamps on the market to help you find a model with the brightness, comfort, battery life, and modes that are right for you. How We Tested the Best HeadlampsWe tested some of the best headlamps in a dark cave. When you turn it on, either the red light or dimmest white light turns on first. The voice control is a fun idea, but the brightness, battery life, and size leaves something to be desired. Things to Consider Before Buying the Best HeadlampsWe tested the best headlamps in the field, including trail running at night.