HID headlamps designed, engineered, manufactured, and certified or type-approved as HID headlamps are legal. "HID kits" and "projector retrofits" where an HID bulb or an HID projector is installed in a halogen headlamp are not legal (and they're also not safe). This answer applies to virtually every developed country in the world, and large parts of the developing world, including USA, Canada, Mexico, Brazil, Argentina, Australia, New Zealand, all of Continental Europe and Scandinavia and the United Kingdom, Iceland, Japan, Taiwan, the Philippines, Hong Kong, China, Russia, and South Africa.
Many people in many of these places install "HID kits" or "projector retrofits" and get away with it for awhile (they don't get tickets) but that does not mean it's legal and it does not mean it's safe. It's neither of those things.
Aftermarket HID's are illegal in ANY state. Period.
HID kits are illegal no matter what the "color temperature rating" is. It is illegal and unsafe to install HID bulbs into a headlamp that was not originally designed to accept them.
No
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No, there are no such things as "hid lights".
PENNDOT currently does not have any regulations that prohibit HID conversions. However, 10000k is excessively blue. Any colors besides yellow and white is illegal. Blue or red especially.
HID headlamps designed, engineered, manufactured, and certified or type-approved as HID headlamps are legal everywhere. "HID kits" and "projector retrofits", where HID bulbs are installed in headlamps not originally designed to accept them, are unsafe and illegal everywhere.
The older BMWs do not have HID lights
Don't. "HID kits" are widely available, but they are (all) illegal and dangerous. The only legitimate/safe/legal HID conversion is to install complete HID headlamp assemblies designed, built, tested, and certified as such. Halogen headlamps mustuse halogen bulbs.
No, generaly the car lights cums with elargins if we want HID lights we can install...it
HID lights are generally illegal, and the name is a clue as to why, These are 'high intensity discharge' lights and they can blind any cars coming toward you. There are conversion kits sold that are supposed to prevent this, but you should be careful retrofitting your car to stay legal.
Yes, HID lights need a ballast.