The absolute most watts you want on track is 1440 watts.
Typically, recessed lighting fixtures will be 75-100 watts. Some go as high as 150 watts.
It is a system of lighting where light figures are connected on a continuous track throughout the house that acts as both structural support and an electrical pathway.
Each type can change out with others of the same type, but you cannot mix types.
There are three: H-Type, L-Type, and J-Type.