..those are turn signals that are not DOT approved in the US..
..You can connect the brown wire to either the blue (hi beam) or white (low beam) of your headlamp...
..however, if you do, you should change out the small lamps with LEDs...the lamps were not designed to burn all the time..
..if wired in the headlamp curcuit, they will cause a noticable dimming of the headlamp, tail lamp and especially when using your turn signals....
..also the heat they generate may damage the reflective surface inside the headlamp housing..
..Install LEDs and there is no adverse effect to any of the other lamps...
peace