All you need if you want to dim from 0-100% on low beam is a dimming box like so:
https://stores.intuit...with/Detail.bok
It also taps right into the high beam relay for 100% light when you hit the high beam (located off the above mentioned relay in the blue(purple) wire which is in the upper left hand cowl next to the air vents on a gen2). You can also hook it to the horn if you want that to go off at 100% brightness.
Its an option for those with more limited budgets (you can mount 4 sets of the brightest lights for the cost of 1 krista!). I'm sure they are great, but I doubt they match the brightness of 7 1800L lights, and 2 dimmers. Having seen both side by side, the Krista's looked slightly brighter, with slightly better throw distance, but not 3x as much.