When products are labeled with "no HID" the products lens assembly is correctly matched to the light output of a regular bulb, when a HID is installed the lens basically fractures the light incorrectly making you "beam pattern" worse, and also blinding oncoming drivers making it unsafe for others and you.
It typically has nothing to do with bulb temp, HID bulbs create less heat than a conventional (incandescent) bulb.
and to prove this I did the test stated above.
