Previous generation LS460 with LED headlights have 3 Led projectors in each housing but that inside larger projector only works on European spec LS460's for that same reason. The US spec cars have the projector but there's no LED driver or light chip installed.
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Ha ha I think about the poor soul at Lexus who tries to get an exception from the DOT or whoever certifies these components. I imagine the reply they receive is, "It doesn't matter if it is safer. Blind compliance is the only item of concern!"

Edited to throw in a link.

Car headlight innovations can't come to U.S. because of outdated rules - Autoblog
New headlight technology from Mercedes is just the latest in a long line of innovative and potentially lifesaving front-lighting solutions that the U.S. government doesn't allow. Here's why

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