Determine minimum transformers required

Figure out how many transformers you'll need by multiplying the total fixtures by the max watts used by each fixture

Max watts to plan per fixture (assumes max lumen setting)

Determine lines required per transformer and common

Figure out how many lines you'll need and which tap to put each line on by determining voltage drop and max fixtures per line.

Use the below table as a general guideline. It assumes 12/2 wire is used. Using a smaller gauge will result in higher voltage drop.

Fixture | Magnolia accent