good info.
I don't mean to hijack, but I've managed to find a green version of the red:
http://www.dealextreme.com/details.dx/sku.20331
comes in blue and violet as well, but I don't see those being too useful.
how is green for a visability/be seen light?
The green would be good for the right side on a boat.
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Fred "The Real Fred"