For those of you who don't want to mess with your inverter you can just buy more. I was using 1 inverter to run all 3 gauges (both speedometer gauges and then the HVAC). I decided to buy 2 more inverters from the guy on ebay that sells indiglo gauges and then just ran one gauge on each inverter. The gauges went from a dim blue-green to a very bright blue.
