[Dave-ROR]

Originally Posted by Sony

I doubt the car ones could kill you, but they would probably mess your hands up pretty bad. Plus they are probably built with thicker glass to help resist damage from vibration as the car is moving so they would be less likely to explode. Still wouldn't want to touch them without at least work gloves though, you don't want to touch them with your bare hands anyways, the oils from your fingers also shortens lamp life. Same goes for halogens, the quartz envelope can develop micro-fractures from the chemical reaction of the oil from your hands and the heat of the lamp, causing the lamp to be more likely to fail. I always wear latex gloves when replacing my headlamps.

Yep, never touch them. I've used denatured alcohol to clean them before but I also always wear latex gloves to handle HID bulbs and halogens.