| Re: Busch & Mueller "Big Bang"---the ultimate bike light?
Bill Baka wrote:
>
> Did you design the electronics and lay out a PCB?
Nope. For controlled-current drive electronics, it's easier and
cheaper-- and much more compact-- to use something like this:
http://ledsupply.com/02009-sho.php (for 3V source)
Or this:
http://ledsupply.com/02012-d-350.php (for 12V source)
> You sound like a budding engineer.
I'm a machinist and prototypist by trade. I just left a private space
program that I helped to start up in 2001.
> Lithium is too expensive
I've bought several 2400mAH lithium cell phone batteries for $5 to $6
including shipping. As long as they keep letting cell phones go out
of production, there will be a steady source of cheap lithiums and
chargers in useful sizes for LED bike lights.
Chalo
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