Aftermarket HID's are illegal in ANY state. Period.
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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
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.
From what i understand, HID kits are illegal unless you have a projector installed on your car so it controls the light output of the HID's. Projectors spread the light evenly and have a cut off point which don't blind on coming drivers. Don't just install the hid kit, replace your headlights with projects =)