Dipped-Beam Angle Conversions
Use this chart when converting dip beam headlights to lightboard settings.
|LTNZ 2005, VIRM: In-Service Certification, Version 2, Amendment 2. May 2005 , Page 4-1-4|
Assuming an asymmetric, high intensity cut-off pattern headlight:
Eg 1. A vehicle with a manufacturers dip beam angle of 1.3%, has a dip beam that will sit 39mm below
the horizontal centre-line of the headlight when measured on a light board set up 3m away from
the front of that headlight.
Eg 2. A vehicle that doesnt have a manufacturers specification for the dip beam, has a vertical centre
height of 765mm. Provided that, at 3m from the front of that headlight, the dip beam falls within a
band 30-45mm below the horizontal centre line of that headlight when viewed on the lightboard, it
will pass its WOF inspection.