Black Diamond, co-primary headlights supplier brands and retailers together to establish a separate, measure the light output of lamps and lighting time parameters of the system. Thus, when the consumer tries to compare different brands headlight brightness, battery life, measured data is used in the same system, to facilitate horizontal comparison between different models, in order to make the right buying choices.

Limitations: almost impossible to find a measure of the system, to reflect on all the important functional characteristics of light output and duration of illumination. The current system, there is a strong preference for the center point of the light fixtures, without taking into account the overall shape of the light output, or the output of the center point of the light outside. Therefore, the projected strong and precise illumination beam divergence weak lighting, projection powerful than both accurate light center also offers more broad beam lamps, to have longer, more distant assessment levels.