What is better: a blue laser pointer, a green laser pointer or a red laser pointer?

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Well, this is hard to say. Every kind of laser pointer has their own advantage. Green laser can have longer range with the same output power, blue laser and red laser has lower price than green lasers with the same power. Blue laser has beautiful beam. A good blue laser for u: Levin series blue laser at http://en.laserto.com/1500mw-levin-series-blue-laser-pointer.html. :)

red- more awesome and classic and fun and obvious and noticeable :-) have fun.

Well, this is hard to say. Every kind of laser pointer has their own advantage. Green laser can have longer range with the same output power, blue laser and red laser has lower price than green lasers with the same power. Blue laser has beautiful beam. A good blue laser for u: Levin series blue laser at http://en.laserto.com/1500mw-levin-series-blue-laser-pointer.html. :)

It depends on your application and your preference. Blue looks beautiful and there are too many red or green laser, so a blue one is unique. But green is brighter than red or blue one, with the same power. so that's the reason why people choose green laser pointer. Maybe http://www.highlasers.com will help you, it has many different choice, with many series.

red- more awesome and classic and fun and obvious and noticeable :-) have fun.