I looked at the BergWerks kit and there are 2 things I don't like about it. First, the wire size is too small (IMO) for over-wattage bulbs. Second, they only include two relays, not four. That means you get to drape wires across the bumper or radiator to feed the "other" side. I'd want at least 10 gauge feeding the relays, and two relays per side (one for low beam, one for the high beam + pencil H3's.) That's how I ran mine and voltage drop is 0.3v on low beam (100w), 0.5v on high beam (230w combined). With electrical stuff, it's hard to go overkill except when you reach the point of wires SO big they're hard to terminate (imagine connecting a battery/starter cable to your H3 bulb, for example). Note that the BergWerks kit is adequate for standard bulbs sizes, and is "ok" for overwattage bulbs, just NOT optimal. (My college degree is in electrical technology, so I'm not just talking out my arse here...
) If you want to buy from BergWerks, I'm sure they'll be happy to accomodate you with some larger wires and 2 more relays, after trying to convince you that "gsxr" clown on the Internet is a real Bozo.
Check out my photos at the URL posted earlier for how I ran my setup. (Yes, I will eventually add text writeups to go with all the photos, so I don't have to keep re-typing this stuff all the time!) For my other 124, which has the same 500E Euro Hellas but hasn't gotten relays installed yet, I plan to feed each pair of relays with 8 gauge wire, splitting to one 10ga per relay, and then 12ga out to the bulbs... all one size larger than my current setup. I want to get down to 0.3v drop on high beam too!
Also note that for a 500E, you'd need a third relay for the bumper fogs only. Since the pencils come on with high beams, those get driven off the high beam relay(s)... not any point in getting another one *only* for the pencils, as the bottleneck is still the feed wire from the battery. Hope this makes sense...
BTW - I was considering doing HID in the other 124 instead of relays. I think y'all have sucessfully talked me out of it for now. Thanks!!
Regards,