Quote Originally Posted by natnat View Post
incorrect, proper HID bulbs run much cooler than halogen bulbs. they use energy more efficiently while halogen bulbs loose a lot of energy in heat.

i tested my cu2 luxury headlights with some snow foam while washing the car after sunset and the beam just scattered everywhere. the same would apply if you get enough dirt / snow / mud on your hid headlights, hence the washers are required to cleanse them.
Theory is right, but the physical examination speaks for itself.

turn on your HID's for 30mins .. then touch your headlight covers..... feel if its hot or cool....

The halogens H11 originally that was fitted, the headlight covers did not get as hot as the HID bulbs which i can actually place my hand on the covers without getting burnt... but for HID's it was hotter