All lights require a 24V DC constant voltage driver. 

It can be installed either in a canopy on the ceiling or remotely.

The canopy may be white, black, or brass.

When multiple lamps are installed, this can be accomplished by having the power come from one central point or providing a separate connection for each lamp.

If each lamp requires a connection but the canopy cannot be placed remotely, you will need a canopy and driver for each lamp. If the driver can be remotely, a round ceiling rosette with cable gliders will suffice.

For a single power point you can use small ceiling attachments to position the lamps. The steel current-carrying cables will remain visible and can be joined either in the canopy or in the if the driver be placed remotely.