Understanding the laser pointer difference before you buy

If you want to buy a laser pointer online, you will see, it has tens of thousands of different models for your choice.From the different laser color (frequency), the output power (MW), design style, function, and more, it can be confusing and frustrating, to understand all the different factors in a.Here, we will look at some of the major components, different laser and will build a better understanding of a pointer, you should find.
1.Light frequency (nm)
Lasers emit visible or not visible (UV, IR) light, is light frequency, actually decided we see color vision.Light is a wave and the wave length is what determines the color of it.Laser pointer varieties is the most common 532 sea green, and for good reason.Because green is the most bright color will appear to the human eye it seven to ten times brighter than any other color at the same power.This means that any other color of a 100 MW of green laser will be much better than the 100 mW laser like red.
2.Output power (MW)
Any laser power will ultimately determine how bright ah, what can be seen, if it can light a match, pop the balloon, and other combustion ability.The output power can be as low as 1 kW to 1000 kW (1 W) and more portable unit.Possible distance higher output power larger and large amount of heat and brightness.If you want to buy a burning laser, you need not less than 200 MW in any color to the amount of heat is released.
3.Power supply
Many different laser pointer using cell styles depending on a wide range of internal engineering units and what kind of voltage requirements.You will usually use double the average sum of laser "" or "" three batteries and not charging the battery usually support varieties.Other more powerful laser, usually with large size can use rechargeable batteries from CR123, Li - 18650, and many other varieties.Must go to any laser model you consider what the battery needs? They included? A charger? All the things to look for.