I ride a trike. Here's my light pattern...
Rear: Big steady red light and two little blinkers. I also have a red blinker on my helmet.
Front: Big 'ol headlight (aimed correctly) & a smaller white blinker.
I also have spoke-mounted reflectors on my front wheels and a lit yellow spoke-mounted light on my rear wheel.
I'm visible, but I live in a part of Florida where several people get caught driving the wrong way on divided highways every week, so I avoid main roads around here like mad.