The driving lights are the parking lights. With the parking / driving lights off, these operate just like a turn signal. When the driving lights are turned on - first position on the headlight switch - the driving lights are functioning. When the turn signal is actuated with the driving lights on, the white will turn off and the amber will light and blink (flash). When the turn signal returns to the neutral or park position the driving lights (white) turns back on. I'll have a video soon that shows everything. This is all done on the circuit board and it just plugs into the 1157 socket.