How to distinguish the Right/Left Hand Drive?

1.What is the RHD, LHD, RHT, LHT mean separately?
1) RHD(Right hand drive):steering wheel on right side, when driving should on the left side.
The RHD=LHT(Left hand traffic).
2) LHD(Left hand drive):steering wheel on left side, when driving should on the right side.
The LHD=RHT(Right hand traffic).

2.The main Regulations of headlight: ECE,DOT,SAE.

See the following pictures show:

Left hand drive(LHD) show:
The right side of the beam pattern is higher than the left.
This is done to show/light up the kerbs and road signs on the right side of the road and minimize the glare light to the opposite side drivers.

Right hand drive(RHD) show:
The left side of the beam pattern is higher than the right.
This is done to show/light up the kerbs and road signs on the left side of the road and minimize the glare light to the opposite side drivers.


By |2018-10-20T06:39:09+00:00August 15th, 2015|Lighting Education, News|Comments Off on How to distinguish the Right/Left Hand Drive?

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