Headlights, Looking for info Options

[Rand]

HID, xenon, halogen, projector beams, LED, etc., etc.

Please share any info you have, or links to useful websites you know of...

Looking for explanations of how the different types work.
Which kinds are the most efficient (brightest, least power consuming)?
Which kinds just need 12v, and which kinds need additional control boxes (or whatever you call them)?
Which kinds are the most compact?
What is the absolute smallest light you've seen (type and size) that I could get away with for low beam headlights?

I have read about LED headlights lights being introduced. Has anyone seen any yet?

There are some amazingly small driving lights these days. What are their characteristics? Narrower beam? Project farther? Are these too bright to have on in traffic?

Which types tend to be the cheapest, and most expensive? I've seen some prices on HIDs that are way out of my range.

Thanks gang.

[Zaney]

I too am pondering a headlight upgrade in the future.
Everyone talks about adding a relay but, where does it go and what does it consist of?
I have seen the headlight relay that PP sells but what else do you need to run higher juice bulbs?

I have found these: headlights and relay
at 9xauto.com.

Also, what does the Euro turn signal kit consist of as well? Sorry for (IMG:http://www.914world.com/bbs2/html/emoticons/hijacked.gif)

Thanks,

Nate (IMG:http://www.914world.com/bbs2/html/emoticons/beer.gif)