I had a pair of Shock Racing Short signals >>>LINK<<< and i was VERY confident people behind me could see which way i was going. Now, if i were to put something up front, it would have to be able to be seen from at least a 120* angle for me to feel safe and be super super bright. Proton makes a pretty nice one >>>LINK<<<. It has a running lamp feature which is better than no light at all, especially if i ride anytime at night. I haven't seen how bright they are though...