I don't think I'd like that light pattern for driving, to be honest.
The Truck-Lites (sold through Narva with resultant Oz tax added), and the JW Speakers, have a better glare free pattern and the ADR stamp. The knock offs I believe have the right pattern, but no stamp. I'd hate to try driving at night with these, though...
Of course, you pay through the nose for that stamp...
(And you can get the unstamped Truck-Lites for about that price.)