I have been running HID's in low/high/fog for years with the "all on" mod. I had been running high output incandescent/halogen/what ever high wattage bulbs. I had a 45 mile commute each way in the dark, and I would go through 2 sets of incandescent bulbs a winter. I got tired of paying the $$ and being worried about the stock wiring harness melting down with the 60/80/100 watt bulbs.
I use 8k HID's w/35 watt ballasts. No worries about the wiring, no hassles with changing bulbs all the time, and no delays when going between high/low beam. My
"all on" only turns everything on when I hit the highs (and only cost about $4.00 at Radio Shack). The fogs are still switched from the dash when in low.
The only vehicle that had more light than my current truck had about $1000 in aircraft landing lights and 100% duty cycle starter relays that pulled about 40 AMPS when it was all turned on, and I still had to change the stinking bulbs all the time, and I had to have a special marine alternator that put out 190 amps into 2 circuits (one for each battery). Too much $$ and too many issues going that route.
I just use my HID's that I get from ebay for $35 per pair (for that price, I order an extra set of each bulb to have replacement parts on hand if something goes), it is the cheapest mod on the truck.
At this point, if it costs less than $300 it doesn't even pick up the radar... :roflmao::roflmao: