Relationship between light quality and lumen

According to the use of limited electric energy, the lighting can be managed in different ways: there is a "direct" relationship between the light output and lighting of standard headlamp, and the lighting management system is built-in in in some technologies. Relationship between output energy and illumination distance: there is a direct relationship between the distance of illumination distance and the output energy, but it is mainly related to the shape of the beam. In fact, for the same brightness output, the middle distance will vary with the beam shape. For example, a 100 lumen light output can project a wide beam at a distance of 50 meters, but it can also project a very narrow beam at a distance of 200 meters.

Tips: 1. Brightness output is closely related to battery life, and they are related to each other (unless the battery capacity increases, which also means that the headlamp weight increases). 2. The shape of the beam affects the distance of the light.