DA Bolt
A Double Arming Bolt.
A Double Arming Bolt.
In Alternating current, the change of the poles from negative to positive and back.
With regard to an outdoor lighting luminaire, the angle between the vertical axis and the first line of sight at which the bare light source is not visible.
Luminaire light distribution is classified as cutoff when the candlepower per 1000 lamp lumens does not numerically exceed 25 (2.5%) at an angle of 90 degrees above nadir (horizontal), and 100 (10%) at a vertical angle of 80 degrees above nadir. This app
Battery Voltage reached at the termination of a discharge. Also Known as the End Point Voltage (EPV).