I ride with 2 cyo lights. That's a total of 120 lumens. I can see fine. With the beam focus, I see as well as I did with my HID light with a cone pattern. My tail-light is a dyno driven taillight, and a PB superflash. Drivers are able to see me and move over. I ride in a suburban area. When I ride downtown I also throw in a dinotte taillight, run off of 4 AA batteries that throws 120 lumens.

I think some of you guys are mistaking road riding with trail riding. Then again, I'm rarely going faster than 15 mph, so if you ride in the 20+ range, I can see the need for more light.