OP, could you tell me more about your Schmidt lighting setup. I am currently building a wheel around a generator hub. How fast do you need to go to get full output from both headlights...Peter White's site seemed to indicate 11 mph. What is the transition like as you accelerate? Do they gradually get brighter as your speed increases. The E6 primary has an extremely useful beam pattern from what I've read. Does the secondary have the same beam pattern (square) or is it a wider angle light for seeing the up-close stuff? I assume they're both switched lights?? 2.4 watt with 0.6 watt tailight for the primary and 3 watt for the secondary?? Thanks for any feedback.