OK, it gets a bit complicated to explain so here goes..
I have three 36" heat rails. They come pre-drilled and taped.
On one rail [we shall call this the "front rail"] I have 5 white and 4 UV on a LPC 35 700 driver that does not dim. Additionally on that rail are 6 blue.. but those blues are powered by the two blue drivers listed below (3 to each driver) This rail has an empty LED port at each end.
The other two rails [we shall call these the "dim rails"] are powered by four ELN 60 48D drivers. They dim and are controlled by two pots (one for blue and one for white) . The white drivers also drive the "others". ..to be explained.
The two ELN drivers on the blue circuits each drive 8 blues on a "dim rail", and 3 blues on the "front rail". .... that is a series of 11 blues per driver.
The two ELN drivers on the "white" circuits each drive 6 white, 1 green, 1 red, and 1 UV on a "dim rail", .... that is a series of 9 per driver.... thus the whites are provided more voltage at full power... (these 2 green, 2 red, and 2 UV are the "others" mentioned above).
Is that clear as mud?? .... LOL... and is a mouth full too..not to mention a head scratch to math out.... and a bit of a web to solder and wire as the proper number of balanced series circuits on three rails.
.................but they work perfectly!