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Hello all, I found this laser on sci-fi lasers which is only $85 for 1W @ 445 nm. This seems remarkably cheap but also maybe an overkill in terms of power. Can anyone recommend it? SF501B 445nm Blue

Thanks for the advice. And yes safety is a must. I plan to buy safety glasses for all involved and I plan to create a setup where the laser is clamped down so it can't roll of any take out a classroom full of eyes

Hello all, I am a PhD student in chemistry/nanoscience and I am hoping to do some outreach in schools to teach science. I have proposed to my university that I do an experiment with the children looking at light and energy. My idea was to take a sufficiently powerful laser pointer and use it to...