HID is onlyHigh Intensity Discharge when you have ballasts, plug-in wiring and special bulbs that go with them. All others are not really HID. You can get a set for as little as $54 on ebay and that includes shipping. If you are just doing bulbs its not going to be much better than stock halogens, just a diffferent color bulb. HID uses a ballast to change 12 volts into a much higher voltage but using less watts (35 vs 55) to increase light output. Hope this helps you out.
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