Blue or blu-ray?
Until fairly recent, actual 'blue' was the more expensive while Blu-ray (405nm) is cheap but to our eyes not very bright... from your pic my guess is that you have a violet laser (405nm) and not an actual blue.<br>
most makers set the outputs below the max for a longer life. AND slight increases will not make a big improvement. In order for us to 'see' a doubling in 'preceived brightness'--you need 4 X the mW-- like 100mW vs 400mW to see a doubling. Even 1W of 405 is not very bright--hard to see the beams from the side w/o fog or smoke. <br>
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HOWEVER-- brightness and burning power are not exactly the same thing- a 405 may be the best wavelength for burnin' stuffs' & while it looks harmless but that is far from the truth.<br>
Even a 3$ 405nm 'pen' pointer could damage the eyes --thus while no laser should be considered to be a toy -- the 405 may be the most dangerous Visable wavelength --AND our eyes own lens will mulitply the power a lot- like 5mW becoming 500 mW Or more--just like the sun= will set things on fire if you magnify the power. <br>
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Treat lasers like guns- locked away- no batts inside--I would even store the tail caps elsewhere if there is ANY chance of kids (or some adults) can possibly get access.<br>
best wishes--hak
Last edited by hakzaw1; 09-21-2020 at 12:48.
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