I have generally used the 12 outlets on a circuit rule. But I am working on a renovation now that has me thinking about this. I am removing 3 head track lights and two to three lamp fixtures replacing with pot lights. It seems to me I should be able to wire a pot light circuit based on nameplate of the load - pot light lamp ratings are clearly identified and that should determine the circuit loading, more so that an octagon box where anything could get installed. So if I am installing 50 watt pot lights only on a circuit that should let me install 28 of them on a 15 amp circuit. Now is there a rule that lets me do this? I know the old watts per foot rule for track lights is gone now, and we rate the circuit based on the heads installed on the track.