Have a look at this thread for the latest linear driver, it should also work with 13A but you would loose the third PWM channel.
” The Texas Avenger Driver series - FET + 1 + 6+ triple channel + Bistro + one driver for all your lights! “:Texas Avenger "TA" Driver series - Triple channel + Bistro or Narsil + Clicky or E-switch - The Ultimate open source driver!