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Hi. I'm a total newbie and trying to understand, so any help is appreciated. If I get any of the many offered laser module / ACC driver / 110V power adapter, am I likely to be safe using household power? Or are the irregularities (spikes) going to kill the driver and diode? Same question but...

Hi. Looking for a small self contained focusable dot laser module, 635-638nm, 200-300mW, external power supply (not battery driven) suitable for 110V plug-in. Thinking bullet type 20-30mm diameter and 50-100mm length. Short, intermittent bursts so heat build-up shouldn't be an issue. If it...

I am looking for help with a project and am almost completely naïve (unless you count using a pointer). I would certainly appreciate any helpful response including redirection to a better source where this all may be found. I do have a science and math degree and some programming experience...