And now comes a teaser...
Many people think that this is where I stopped. Well, no.
I began being frustrated by the 55w high-beams. When I turned them on there was basically no difference in brightness, only a tiny bit more light above the cutoff line. This only shows how bright yet safe can good HIDs be.
I was thinking about putting HIDs as high beams but I am rarely in such a situation when I can turn the high-beams on for longer than a minute (due to oncoming traffic). So flickering the HID high-beams on and off would be deadly for the bulbs and ballasts.
This is when I thought that I needed a so called bi-xenon setup. These are special projectors which have a moving curtain. When in low-beams the curtain is closed and creates a cutoff. When you switch to high-beams the curtain is raised and light goes far down the road.
The advantages are that you have very strong HID high-beams and you can turn them on and off as you want. The same bulb functions for both types of beams.
This would also enable me to put HID bulbs into the usual high-beam reflectors and I could use them for off-road or in situations when I can turn them on for longer.
Light output of a single HID bulb is three times biger than that of a typical halogen so if I turn both lights on it is as if I used 6 halogens per side (a total of 12 halogens in the front).
For the same light output there is a different power consumption:
12 x 55w = 660W with halogen bulbs
4 x 35w = 140W with HID bulbs.
So I began by buying the proper HID dual beam (bi-xenon) projectors. Here's the teaser part....