So the UK version of the Britpart LED headlights have DOT SAE markings on?
DOT stands for the USA Department of Transport and is a standard used in Central and N America.
Now it would be possible for a high beam ONLY headlight to have meet both the DOT and UNECE technical requirements.
The light pattern requirements for them in low beam is different.
Now North America drives on the right whereas the UK drives on the left and I can not readily see a light manufacturer ensuring LHT/RHD headlights being DOT compliant
Vision X and Truck-Lite both American companies certainly do not mark their UK specification headlights with DOT and SAE.
So that raises a question mark over the Britpart lights.
Next question mark UNECE regulations state
4.2.2.1. On headlamps meeting left-hand traffic requirements only, a horizontal arrow pointing to the right of an observer facing the headlamp, i.e. to the side of the road on which the traffic moves;
4.2.2.2. On headlamps designed to meet the requirements of both traffic systems by means of an appropriate adjustment of the setting of the optical unit or the filament lamp or LED module(s), a horizontal arrow with a head on each end, the heads pointing respectively to the left and to the right;
That is part of the APPROVAL mark. I can not see it in the photograph of the Britpart approval markings.
The arrows are present on the Vision X and Truck-Lite UK specification lights.
That does raise some questions about the full legality of the Britpart LED headlights.
I do not have the Britpart LED headlights, I can understand that retail customers buying these lights believe that they are 100% road legal.
However I think that Britpart needs to explain WHY their UK specification dipped and main beam headlights
1) Carry the DOT markings
2) Why they do not carry the LHT/RHD arrow as required
Brendan
