Increasing numbers of bicycle enthusiasts on the road have translated into more riders on the road after dark. Try whipping up a pair of these hi-low beam headlights to keep the world around you bright at night.
Biking at night can be a dangerous thing. These headlights can switch on their own hi-beams to give you a better view when you're alone on the road or to issue notice to oncoming vehicles to dim their brights when you're around. They also pack enough punch to light the ground at high speeds, as it's always a bonus to be able to see the rock or pothole before you hit it — especially while going downhill in the dark.
Hit up DIY weblog Steam Punk Workshop for more details on making your bike a safer mode of nighttime transportation with a few parts from your local hardware store. Added bonus: it looks a lot like Johnny 5.
Home Depot Bike Headlight [Steam Punk Workshop]