Bright Light=Motorists will notice you.

Superflash in a pair=Motorists will slow down and avoid you like the Plague.

And again, no, I don't have any financial interest in PlanetBike. I think their products suck, except for the Supeflash, and maybe the Blinky 7. I don't like their Beamer, or any of their other lights. I think they are crap. Don't buy them! But buy the Superflash. Here I can get two for under $30 and feel 10X safer and better than spending $100 or more on a Dinotte.