Directional LED in the small reflector formats: MR11 at 3W, MR16 flood and JDR at 7W in 12V, and GU10 at 7W in 120V, running 3000K soft white and 5000K daylight with dimmable options.
Base and voltage are the two specifications that decide compatibility, and confusing them is the classic failure in this category — a GU10 and an MR16 look similar but will not interchange, and a 12V lamp in a 120V fixture fails immediately. Both are stated explicitly per SKU.
Track heads, display cases and accent fixtures all pull from here. The halogen equivalents remain stocked in GU10 and MR16 bi-pin for fixtures that have not been converted.