Yeah...i was wondering about that. is it only the voltage difference, or are there any other ways the headlights are wired differently? the vendor I bought the harness from indicated it was going to be an "off-label" use of the product, but that they had other customers who tried it and were happy so far...so I decided to go for it.
@Idaho Savage I'm really reaching into the archives here but curious if you ever got good results with the stock headlights and the ARB harness. I've just installed and had a very similar experience. The dims don't seem to have improved at all, brights are better. Everything functions as advertised, no issues with functionality and i double checked the wiring harness re-wire which i've got correctly oriented per the instructions. Wondering if you figured anything out that helped.Check on all of these. I am simply confused and out of ideas. I'm going to call Curt at Cruiser Outfitters on Monday. I really appreciate all of your help eliminating the variables and I'll be sure to update the thread if I figure it out.