Mounted
Jake writes –

“I’ve been using this headlight for 4 years now and I’m still using the original bulbs. The low beam has power enough for speeds up to 40 miles per hour and on-coming traffic ALWAYS dims their brights when I flash the 50-watt high beam.”Link.

Want more?

Newtrikelight
This one is made of 120 super-bright red LEDs, and two 1W Luxeon LEDs – Link. Schematics / Eagle CADs and more here – Link.

Related:

  • 500 Lumen BIKE LIGHT for around 10 bucks – Link.
  • HOW TO – Make a 40-LED bicycle light – Link.
  • Antique bike light LED mod – Link.
  • More bike light projects – Link.
  • Bicycles @ MAKE – Link.