Best UV Flashlight

A flashlight is needed if you are looking for clues or treasure in old buildings without electricity or in tunnels or caves. Everything is possible with geocaching and is offered by different providers. The UV torch is available in different versions. Sometimes very small UV flashlights are also used, which fit on a key ring. But also the larger version in real form of a flashlight can be used. The UV flashlight is especially necessary for the so-called night cache, a very popular form of geocaching. The UV flashlight can help to detect ultraviolet sensitive surfaces, which is not possible with a conventional LED flashlight. Especially in geocaching, objects are specially marked, which can then be illuminated with the UV torch, resulting in further directions.

A UV flashlight also works with LED light. But this emits the light with a certain wavelength of 395 to 400 nanometers (nm). The special feature of the UV flashlight is that the ultraviolet waves are not actually visible to humans, but become visible when the UV flashlight is illuminated. Especially for geocaching it is useful to use a UV torch, because the other players do not detect the radiation of the torch. If you use a normal flashlight for geocaching, you will immediately lose it because it will be discovered very quickly by the emitted rays. Somewhat disadvantageous might be that this type of flashlight has only a very small range. The price difference is noticeable very quickly here. There are also UV flashlights, which can radiate quite further. A small keychain UV torch has a range of only 1 to 3 m and is therefore not suitable for a night cache. Those who buy a UV flashlight should make sure that it is equipped with batteries. Replacement batteries should always be at hand. The smaller UV flashlights have no possibility to change the batteries.

When buying a UV flashlight, you should make sure that the wavelength is large enough. Because the larger it is, the closer the effectiveness of such a flashlight comes to a normal flashlight. You have to invest a little money in a good UV flashlight. But such a brand torch does not have such high price premiums as computers and smartphones do nowadays. But the somewhat high-priced products are usually also the better ones. Finally, of course, the size of the UV flashlight should also be taken into account. A UV flashlight for the keychain doesn’t perform either. The UV flashlight should also be as handy as possible, i.e. ideally ergonomically shaped.