problem being with those high wattage bulbs, they melt your lamp connector eventually, and most of them don't last because of the heat.. I tried about 4 different types, finally tossed them and got a black box.. if you pull back on your high beam lever, like when you flash someone, it turns on both high and low beams.. much better light because you have both lower light coverage, and your high beam coverage.. secondly, your using the same lamp connector naturally, but, your also putting the same 12vdc on them that you would if you just switched high or low.. running a relay to control your lights will always be the best.. you get the full 12volts to the lamps .. I like the black box effect up here where the deer are everywhere and the moose wonder out at night.. so basically, when you turn on your high beams, you get both, low and high at one time.. otherwise, if your on Low, that's what you get.. if you have fog lights, you have to specify that so the unit will carry the extra load, it will turn them on also..
