I bought this blue laser on eBay for a project and want to connect it to wires. I know the negative is the coil, but I can’t figure out where the positive is ? Any help ?
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I’m not planning to power it up in any way I’ll still be using 2x AAA batteries (the batteries advised) but I need to make a different casing for my school project . I know I can solder the negative wire to the spring as I’ve seen it in videos but how would I solder the positive one on ? Thanks 4 ur help btw !!Typically with Chinese dpss the spring is negative the case is positive ( the module body ) but you power it up at your own risk.