hi friend
if you are installing HID kit to a no projectors housing the major issue is the headlight reflectors are designed to reflect Hallogen light and do a very poor job and tend to 'scatter' the beam of a HID bulbs. It dosen't focus the beam very well and your light output is not a nice focused beam to avoid this Headlight Modification is needed
hid light source three times the output of standard halogen lighting
i thinks HID's improved peripheral vision and enhanced down-the-road visibility, especially in bad weather