here is something i found, had to translate it from russian
http://intercar.com.ua/forum/viewtopic.php?t=1028
later found here

D4 bulbs require D4 type ballasts, will not work with d2 or d1 type ballasts
42402 Philips D4S 4800K 3200lm (Hg free)pure white, 42V.

42402 V269 Philips D4S 5800K 3300lm (Hg free), snow white 42V.

42406 Philips D4R 4800K 3800lm (Hg free), pure white 42V.


66040 Osram D2S 4150K 3200lm, DOT approved, yellow-white Xenark

66043 Osram D1S 4150K 3200lm, DOT approved, yellow-white Xenark
elektronic 35W

66050 Osram D2R 4150K 3200lm, DOT approved, yellow-white Xenark.

66053 Osram D1R 4150K 3200lm, DOT approved, yellow-white Xenarc electronik 35W


85122 Philips D2S 4100K 3200lm, DOT approved, yellow-white.

85122+ Philips D2S 4300K, DOT approved, yellow-white, white with tint of yellow (color match) CM (plus)

85122WX Philips D2S 5800K Ultinon 2400lm pure blue violet white.

85123 Philips D2S 4900K color reminds color of Ultinon, pure white, whithout yellow ( most likely specialy for BMW)

85126, same as 85122, but D2R

85126+, same as 85122+, but D2R

85407 Philips D1S, built in starter, rest same as 85122.

85407+ Philips D1S, built in starter, rest same as 85122+

85408 Philips D1R, built in starter, rest same as 85122

85408+ Philips D1R, built in starter, rest same as 85122+

hope it helps