I need to know about the brightest bulbs for a stock headlights on my MK IV jetta ..
What brands or models are the brightest and best bulbs
Just putting new bulbs in. It will make a difference!
As HID bulbs age the produce less light, OEM bulbs are good for about 4yrs then start to change colour and output.
Or Osram 66240 5000K D2S CBI