Ok heres my 2 cents on the this lighgting discussion,
And i'm coming from my experience with standard
Ibiza headlights not gti and HID kits in general (I've had 2 and sold about 6 to various firends etc.)
So once again for standard
ibiza headlights which have a single H4 bulb for high and low.....
- HID's -
Good Points.....much better light output if you get the right colour (4300k or 6000k, anyhting above is just colour not light, I had an 8000k kit) and it has to be a Bi-Xenon kit! Otherwise you'll just have 1 xenon low beam and a standard halogen high beam.
Look Cool also.
Bad Points.....They blind everybody when driving at night, no doubt about that, you'll get flashed by at least 1/10 cars when your dipped beams are on cause there so bright. Its really annoying!
Also unless you wire them through a relay and possibly a separate fuse they cause interference(fuzzyness) on the radio and the whole concept of Plug and Play is then thrown out the window cause you gotta start crimping,stripping and soldering.
Fog Lights....( H3 bulb Size )
I just wired up mine the last day and there brilliant, much brighter at night! I got a HID kit for mine (3000k) and its great, has really solved my problems with lighting. Also because the Foglights are lower down to road the bright light emmitted friom the HID kit doesnt blind anyone and i've had no
problem with people flashing me. I wired mine through a relay to the battery and a switch in the car and jumped them onto the sidelights so they turn on and off with my sidelights (better of cause you could easily forget to turn off a single switch where as if you leave the sidelights on it starts beeping when the door is open)
Bad Points....
Suj doesnt like them....
GTi/Cupra Lights
I cant talk from experience here but I think these probably have a H1 high beam and H7 low beam same as most other modern german designed cars.
There definetly brighter because of having 2 separate bulbs for High and Low but there also probably much dearer than buying a set of fog lights!
So in my opinion if you have standard
Ibiza headlights and you wanna improve visibility without any grief get yourself a set of fog lights with good bulbs or a HID kit
Mine in total cost me €75 inlc. Delivery to Ireland
€25 for second hand fogs
€40 for HID kit
€10 for wiring, relay, spade terminals etc....