My most important light is a helmet mounted headlight. 700 lumen Niterider. My route is mostly on twisty, dark MUPs, so the other lights are not as important. Also have the same light on the bars, a helmet mounted L&M 180 taillight, and a rack mounted PBSF.

Even with all that, some peds are so unaware of their surroundings, they sometimes don't see me until I'm 10' from them. However, cars definitely notice me.