With the same components you could build a 3 channel driver, driving 3 banks of 7135’s.
Low = 1x 7135
Mid = 1x 7135 + 2x 7125 (3 in total)
High = 1x 7135 + 2x 7135 + 5x 7135 (8 in total)
The benefit would be that you don’t need PWM.
But you could use PWM for even lower modes (on 1x 7135)

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