I have recently bought 2 of these laser modules: 5mW 532nm Green Laser Module (3V 11.9mm) [E18083] : BestOfferBuy.com, Buy DVD, Shop for PC accessories, Discount MP3 Players, Bargain Deal for Surveillance Equipment, Cheap R4 for NDS, X-sim Unlock, and I'm wondering if I need anything other than some wiring, a switch, and a battery holder containing the right combination of batteries for 3 volts. I also would like to know which wire is for which polarity.
I'm also wondering what I usually need in general when buying a laser module to get it to work.
I'm also wondering what I usually need in general when buying a laser module to get it to work.
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