Hello, i'm new with lasers, i've a green 200mw that a I bought a long time ago, and now i'd like to have a 250mw blue laser inside a AA Minimag. I think the power source can be 2x 14500 7,4v battery from DealExtreme.
I saw in ebay this module with a drive from geareb:
250mW+ 405nm High Power...