When it comes to beams which one is brighter
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Lasers are very dangerous. Specially pointing it at the sky, as it if hits an aircraft, you are in big trouble. The department of homeland security has classified that as a terrorist act. There are hundreds of incidents where a pilot was partially blinded and the co-pilot had to take over. If that occurs at a time where the co-pilot were not available, you can have a crash and kill hundreds.
In general powerful lasers can be used only indoors, in an windowless room with controlled access, and anyone in the room must use the correct safety glasses (which vary depending on type of laser).
The problem is not just the beam hitting someone's eye, the problem is that the beam can be reflected off any shiny object, like a piece of metal or glass, travel through a window, and still damage someone's eye.
Lasers are NOT toys. They are dangerous instruments and must be handled correctly and with care.
In general powerful lasers can be used only indoors, in an windowless room with controlled access, and anyone in the room must use the correct safety glasses (which vary depending on type of laser).
The problem is not just the beam hitting someone's eye, the problem is that the beam can be reflected off any shiny object, like a piece of metal or glass, travel through a window, and still damage someone's eye.
Lasers are NOT toys. They are dangerous instruments and must be handled correctly and with care.
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Brighter to HUMAN eyes. Buy the red one my child. But my real advice is to learn something and just make your own from a blue ray player. (hella cool)
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10mw is smaller than 200mw. Of course, the 200 mw is brighter.