I had bought a new bike with hub dynamo to me recently. However, I was very disappointed with the original halogen headlight. After some Internet research, I finally came across this LED Bicycle Headlight and ordered him. The recent customer reviews I can agree on this point only - that is finally right light at the bike! The cone of light is very bright and will light much further than any light bulb! There are three switch positions on the headlamp: Automatic - Always ON - OFF I take this position "Always On", as it does with the hub dynamo no appreciable difference whether the light is now on or off. The LED has a life, which is my bike-driving-time probably far exceed - but there is a margin of safety when traveling even in day light. The assembly of the headlight was pretty easy. Only dismantle the originals, attach the new one with the same M6 screw, for cable hub dynamo has to be re-routed, the rear light is infected with the existing cable sockets just like the old headlights - finished and working!
