12v lighting wiring and NEC

[James DeRoest]

This is for my home that I'm renovating at the moment, not a rental. Just so we're clear.

I want to put in a set of high ceiling lights, but going 12v led rather than full blown 110v downlighters. There will be about 64 spread across two rooms (kitchen and living area), and each light will powered individually as I'll eventually want to control every light individually (I'm told Dmx512 can do this).

But what is the correct wiring to NEC that I can use for the lights? The furthest light will be 70 feet from the transformer, the lights themselves are 12v and 0.1amp. Am I really running 12 or 14ga for each one of these?