That's because, as far as I know, no one makes a complete HID assembly (the only way to do it legally and correctly) for the D1. It's easy to do on Jeeps (and RRC's, Defenders and Series Rovers) that have 7" round headlights because you can get complete HID assemblies. Same for LED headlamps.

The best/cheapest/legal/considerate way to get good lighting is to run a #10 wire from the battery to relays and #12 from the relays to the headlamps, install #12 or #14 earths and make sure they are clean and solid, make sure your lenses aren't fogged or yellowed and maybe use higher quality bulbs.

 

Agreed. Another way is to upgrade to a HIR halogen like the Philips X-tremeVision.

However, one of the two HIDs in the article was used in the stock housing and found to have a better beam pattern than the stock halogen. Again, this depends on the bulb.

 

Sorry, not true.
HID restrofits in to halogen housings are illegal in all 50 states (and most developed countries).
NHTSA regulations trump state regulations. Even if a state implemented a rule stating they were legal it wouldn't matter, they'd still be illegal. If it's illegal per the NHTSA it's illegal in your state, if it's legal per the NHTSA it's legal in your state. If something isn't addressed, then your state can have a regulation on it. Mud flap rules (maybe) and bumper height rules are two that come to mind that aren't addressed by the NHTSA
https://landroverforums.com/forum/mo...adlamps-39755/

If you mean they aren't enforcing the law there yet, that's a different topic.

 

Correct optics is more complicated than just seeing how a headlamp projects on a wall a few feet in front of the vehicle.
I was surprised that they even tested them because at the beginning of the article they said they were only testing compliant headlamps and such retrofits aren't compliant. Obviously the person writing the article doesn't know what DOT compliant means, which can mean absolutely nothing. Anyone can stamp anything "DOT Compliant", it doesn't mean it really is.

 

WELL like i said the factory installed sont guards on the lights are illegal but i am not going to remove them, and actualy driving with fogged over lenses is illegal it is called "defective equiptment" it impairs the drivers ability to see at night, how many tickets do you think are given for that I was a cop I have an idea what the judge will throw out in court since the judge may also have fogged lenses or hid on his pov

now if the headlights are not properly adjusted and blind other drivers that is also a ticket but all the person does is goto a repair shop have em adjusted and bring the reciept to court and it is dismissed as complied with law, UNLESS YOU HAVE A LAZY JUDGE THAT JUST RUBBER STAMPS EVERY TICKET, i always worked with good judges

there are alot of illegal mods people do, adding the 2" lift springs is illegal you are modifying the suspension beyond factory, lowering is also illegal,

having tires that stick past the wheel wells, having tires over a certain size, not having rear mudd flaps the list goes on and on with the common modds people do and never get a ticket oh also cause the cop probly has them on his pov, laws also state it is illegal to sell such items

as far as the other laws that overide state, try getting a judge to agree to it considering it is probly a law the local cop does not know or cannot enforce especialy if it s some national highway safety code, and the judge at most tells the defent to come back next month with something from the state dot saying it is ok and the summons will be dismissed

these are my experience ymmv

 

Unless you get a lazy clerk, or one who's been paid off, the State DOT isn't going write an affidavit stating something that's illegal is actually legal. That would be perjury.
Yes, selling HID retrofit kits is illegal and the NHTSA is shutting the companies down all the time. Just hard for them to keep up.
Many of the things you list as illegal variy from state to state. If modifying suspensions were illegal then the laws wouldn't be written as bumper height laws, they'd be written as suspension modification laws.
I have no idea what "sont guards" are.

As for some cops not knowing the laws, I can see from your post that's the case. But if you read the link I posted you'll see that more and more cops are educating themselves about the regulations.

 

sorry supposed to be stone guards for the lights, in va suspension alteration is unlawful, and there are no bumper height regs since you are not required to have bumpers, any measurement would be taken from the ground to the bottom of the frame horns where the bumper attaches regardless if there is a bumper or not

I know in n.j. any vehicle with altered suspension must go through a dmv test and display a special decal stating some measurements and tire size, if anything changes the vehicle has to go back for reinspecting and a new decal, i see very few lifted vehicles with the decals, I had the decal on a previous truck

my point is people do illegal alterations all the time and in the end you can't enforce it all all the time

not sure what your point is except to keep harping on the fact that hid are not street legal and you do not like them but as the op that was not my question you should go back to my original post and read it and see if any of your posts in this thread answer my original question I do not believe they do so I bid you good day sir