What is special name suffix "/SB"?
This special name encoding reference means: Silver Bowl.
Top portion of bulb is a mirror reflector (usually coated on internal bulb glass).
This provides for no glare output, only back-light reflected output.
Otherwise, on HID bulb types, this usually means "self-ballasted"; ballast is built into bulb. No external ballast necessary.
references for this page: /SB, SELF-BALLASTED, SELF BALLASTED, SILVER BOWL
reference to this page: /MVSB