1w 405nm pointer build

Made this from the UV flashlight that came with a glue kit.


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Near-UV 405 nm (what I call them as they are just a bit longer wavelength) diodes pack some punch and can be focused to such a tiny little spot, they can sure burn well. A lot of energy is packed into UV wavelengths, far more than red-green. The shorter the wavelength the more punch they pack as the photonic energy levels are so much higher for that wavelength to tear into materials and vaporize them. Being able to focus to such a small spot is also why, due to increased power density from being focused into such a small area.