This article refers to CE versions of products
This article refers to the LED version of the product. For tungsten MR16, see this article
This article describes what part numbers you need to replace the driver in a Source Four Mini LED CE. You will need the following parts.
1x 7063B5701 (S4 MINI LED DRIVER 230V ASSY)
1x HW6758 (STRAIN RELIEF GRIPMASTER INS SIZE #3-B) for the outgoing wiring (to fixture)
1x HW6760 (STRAIN RELIEF GRIPMASTER INS SIZE #1-B) for the incoming wiring (from mains)