I've been pedaling at night. I use two headlights (one is steady and the other's blinking) and two or three blinking rear lights. The headlights are fine if riding on streets with street lights. Otherwise, they aren't bright enough to illuminate the road.
So, I bought a brighter light - a Cateye HL-EL320. I also keep the other headlight as a blinker. Now, I could bike safer even on a dark night.