As far as I know the standard setup for lights in the US and Canada is a round box sunk into the wall or ceiling, with two #6-32 UNC threaded lugs for fixing the light. There are special ceiling fan boxes rated for the weight of. ceiling fan.
You need some kind of bracket or plate that lets you screw these lights to the box. Depending on the weight of the light you may need to open the ceiling and replace the box for a fan one. You also need to devise a way of connecting the light to that plate or bracket, e.g. a threaded tube. All that‘s more of a metalworking question rather than an electrical one.
You need some kind of bracket or plate that lets you screw these lights to the box. Depending on the weight of the light you may need to open the ceiling and replace the box for a fan one. You also need to devise a way of connecting the light to that plate or bracket, e.g. a threaded tube. All that‘s more of a metalworking question rather than an electrical one.