Camera scoring has to be matched to the board it is reading — the camera geometry, the board diameter and the mounting all have to agree — and assembling that from separate purchases is where people most often come unstuck.

These bundles remove the question by supplying the components together, already sized to each other.

Worth knowing that several systems use the board light as their mounting point, so the light is part of the system rather than an optional extra. Each bundle lists exactly what it includes, since the combinations differ between makers.