HID bulbs with out projectors will blind other drivers and are no where near as effective as they could be. Really people who use them with out projectors are 16 year olds getting 10,000k lights! " Oh dude, im gonna get some 10,000k lights and blind everyone! As long as I can see, I don't care!". I quoted myself when i was 16.
Ive since grown up and got a pair of Morimoto Minis w/ Apollo Shrouds
There extremely effective and worth every penny I spent on them. My only regret is all the money ive spent on hid bulbs when i could of eaisly bought the projector kit... which by the way come with the bulbs.