The biggest problem is not the HID lighting its-self, but rather all of the re-based kits that take a HID bulb, and attach it to a halogen base that allows you to install it into a halogen headlamp. Then instead of the OEM 4100k, 4300k, and 4800K bulbs the marketing geniuses say hey lets market 8, 10, and 12,000k bulbs yay Ultra-violet. Automotive manufacturers have toned down the cut-off and color, due to complaints.