Pic request, 200 projectors before and after

Im a bit confused with whole projector business, what are the benefits over standard 200 headlights? Also do you have to go HID? A few pictures would be great. Do they look different when the lights are off? Cheers joe
 
projectors (glass ball looking lense inside) have the black surrounds, (then again im pretty sure you can get black surround reflectors aswell) so it greatly improves the look of the front end, and if going for HIDs/xenons/xenon white blueish look then your better off using projectors as 1. look better through a projector lense 2. using HID kits in relector head lights is highly illegal and very dangerous to other drivers, as HID light patterns are different to normal and turn out to be very bright in reflector headlights. renault projectors come with cornering lights which i think most if not all reflector headlight dont have. but you can get after market projectors witch out the cornering light, but not to sure on how well they fit. FK automotive have got a vast range of after market headlights and also cheaper than reanault ones. hope this helps