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Four Things You Must Know Before Buying a LED FlashlightIf you want to get a good LED flashlight for specific situations, there are four things you should know about first. Recognizing these four issues, and knowing where to find them, will save you a lot of money and bad experiments.Before buying a LED flashlight, you probably made up your mind to get the optimal torch. The problem, however, is how to define the best flashlight. Is it the one that all the kids have in school? Is it the one that your colleague uses when he goes hunting? Or is it the one your mother-in-law always carries with her, in case she needs to defend herself against violent men in the streets?Well, it could be any of the ones mentioned about. However, you would probably agree that it's hard to measure the performance of such a torch.Earlier, you would have to do with statements and reviews like that. Since 2009, however, there exists a standard that the flashlight manufacturers can use and, which makes it easy to compare one LED flashlight to the next for the consumers.This is good for you, and it will show you, black on white, what to expect from a specific torch.The standard is called ANSI/NEMA FL 1-2009, and it addresses six different performances that can easily be measured. Unless there are specific circumstances, you should especially be concerned about the first four performances. Here they are:1: Light Output. This is measured in Lumens, and the more Lumens, the brighter light.2: Run Time. How long should you expect your flashlight to be useful on a set of batteries?3: Range (in Meters). This measures the length of the light beam in meters.4: Peak Beam Intensity (in Candela). How far away will the torch light still be useful?5: Water Resistance Rating. Will your torch tolerate a rainy day, or being dropped into the water by accident? Or will it even be able to survive several hours under water?6: Impact Resistance. How well will your flashlight survive, if it's dropped or thrown on cement (measured in meters).For most users, the first four standards are the most important and the ones you should look at before getting a new torch.Some might be more important than others for you.What is the purpose of your flashlight? Do you need it to read in bed? If that's the case, you'll probably want it to have a long run-time. Or do you want to use it while working under dark conditions? Then both the light output as well as the run time will matter.If you want to use it for hunting in the woods in the early mornings, then you would probably want the best performance from the four first standards, as well as some water resistance.So finding the best torch really depends on your purpose....
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