Easy Way to do a Headlight Mod?

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I think I'd save my money and energy and just avoid the intersections or turn right on red when I got there to go the long way around. I have never shut my bike down at a stop light because I think it leaves me too vulnerable. Adding lights makes sense, I think, but if I were going to power down at long lights and if that resulted in excess battery drain, I think I'd just out it on a charger at night. That's my advice, but I know it's not helpful in achieving your goal. I don't have the technical expertise to fully understand your question, much less provide a solution. Good luck and post pics.