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Since the laser was born it has come a long way. Lasers come in the colors of red, green, blue, violet and yellow and the intensity id dependent on their status on the color wave. Earlier it was only the violet laser that was waterproof but now waterproof lasers have been developed. With the great strides made in technology the 200 mw waterproof has been developed. The 200 mw waterproof laser is a pen pointer and it is easy to be carried around. The 200mw waterproof laser is useful as a tool in the classroom to point at specific places during a lesson. The 200mw waterproof laser could also be used by astronomers to point at specific places in the vast sky with clarity. The buttons on the 200mw waterproof laser are easy to operate. The intensity of the 200mw waterproof laser is higher than the normal lasers. The green laser is also water proof now and the 200mw waterproof laser operates on a wave length of 532nm. The 200mw waterproof laser has a range of 6000 – 12000 meters and can be used to a maximum depth of 50 meters and is clearly visible in the dark. The 200mw waterproof laser operates on a wave length of 660mn and visibility is possible to 6000 meters and is usable to a depth of approximately 45 meters. The violet 200 mw waterproof laser can operate to a depth of45 meters. It operates on a wavelength of 405nm. This 200mw water proof laser is not as bright as the green or red variety but gives a beautiful glow under the correct environment. The beam of the 200mw waterproof laser is rounded. When using lasers, there are a few guidelines that are very important to follow. The laser should never be pointed at others especially the face and eyes. Care should be taken to avoid looking into the laser beam. Take care of reflected surfaces because the reflected laser beam can bounce back and could also damage the eyes. Children should not be allowed to play with lasers and they should be used only in a controlled environment. It is also dangerous to point lasers at aircraft. This is an offence. The 200mw waterproof laser when used in water should be handled with care. It should not be continuously used for more than 30 seconds and care should be taken that when used underwater all movable parts are securely locked.
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