So on the rare occasions I find myself on the bike before the sun is up, I don't use a front light for illumination, but for visibility. I only ride roads I know with sufficient street lights to illuminate my travel. I want it as bright as possible and shining directly at car driver eye-level. Pretty much the same for the rear light. I'm using something called a Blindeye, with what they call 1 watt led's and visible up to 1.5km away. I guess they're pretty bright, I've had other riders comment on how bright they are.
