What is a downlight? The joking explanation: the light output is downward; a light souce + a fixture / housing / cover.
But if one really defines a downlight like that, the factory is just producing a lighting commodity like bulb light. More attentions should be paid to whether the structural design matches well with the achitecture, the light quality is exactly what an atmosphere requires, upon demands of various applications.
Then, another question comes out: how do we get the product sense? Look for answer from customers, achitecture owners, the construction sites......
It's more and more important that we should take the lighting as a systeom, but not only a single light / lights? The applications require a series or various series of lights to meet demand of various buildings.