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- Sep 5, 2013
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As for setting things on fire: for any visibly laser that can light a match you can safely assume it will do irreversible damage when it shines directly into someones eye. 10 years ago power levels like 200 mW made people uneasy, and whilst much more powerful lasers are on the market today, they are just as dangerous as they were back then.
Thinking otherwise is logic similar to assuming that it takes a tank shell to kill someone, so shooting a 20 year old handgun at your head could not do that much harm.
^That's a very good point Benm made right there. 200mW's by today's standard wouldn't be considered very powerful since we have easy access to lasers that can do 1W no problem, but the dangers are still very real, and if no precautions are taken will give you a lesson you'll need to deal with for the rest of your life.
I would consider starting at a lower power, and gradually working your way up.
-Alex