Originally Posted By: The Critic
One of my friends recently bought a DDM kit and he told me today that the bulbs are already somewhat blue. Definitely not a quality kit, and he is a person who has done many retrofits before and is saying that the DDM components are not high quality at all.
Not that cost always indicates quality, but you can be reasonably sure a lack of cost does not indicate quality. How good can a $50 USD HID kit with ballasts, wiring and bulbs be?
The bulbs start going towards blue as they age. However, that shouldnt be for 500+ hours. However, with the spare all costs - anything goes - attitude in Chinas manufacturing industry, nothing surprises me.
Thankfully, HID bulbs are very inexpensive.
Also, using the cheap China ballasts in these kits is nothing but trouble. Poor light quality, poor bulb and ballast life, RF noise generated, audible noise generated, excessive current draw, etc.
The best kits use ballasts from the OEMs; Mitsubisi, Denso, Matsushita, Hella, etc. and provide a wiring harness to make it work properly. These are the exact same ballasts off late model HID equipped vehicles.
I always use the Denso/Infiniti ballasts and they are awesome.