Hi guys .just joined and bought my C 240 3 days a go, very excited!...i been buying aftermarket parts for 2 days now, question is i just bought the halo headlamps on ebay (great price $215, $34 to ship a lady can shop) so the dilemma is *i want to do 12,000 kw bulbs(hid) they have several kw's(6,000 8,000.10,000 15,000 etc...hid's )and these my 12's are more realistic so i prefer them.BUT seeing the halo's i bought have 2 Halo rings in each headlamp what bulb size will work???? i stumped one Hid company to the point they sent out emails asking questions from the customers about it.They only knew the stock bulb Hid. So are they the same bulb or different and if so what part # for a C240 02-05?(w203)and are 4 hid bulbs needed for 4 halo's? Thanks Guys~