It is always necessary to prepare a flashlight when we go outside. Imagine that, it would be dangerous when we go to somewhere there is no light. Commonly, we use while light flashlight mostly, but in fact, flashlights with other color lights are available, for example, yellow light, red light, etc.. Such flashlights have different characteristics. Here, I will walk you through different flashlight light Colors.
White light
Most flashlight produce white color. Before LED, the flashlight’s light color is not pure white but a little yellow. When LED raised, white color became popular. Among all lights, white color is most close to sun light. Therefore, it is not easy to make our eyes tired in darkness. Furthermore, it is very easy for human eyes to get used to white light. To human eyes, white light is most comfortable in the nature.
Compared to other color lights, white light is higher in both brightness and color temperature, which give people most intensively bright feel. That’s why white light is so widely used in our daily life, lights in our office, street lights, car lights, and more.
Yellow light
The yellow light here is the pure yellow light, not mixed yellow light.
The yellow light talked about here is not the one emitted by traditional flashlights which use incandescent bulbs. Strictly speaking, the white light which we see before LED is kind of white light, because of the lower color temperature, it turns a little yellow. White light is mixed from red, orange, yellow, green, blue, ingots, purple. It is a mixed color. The yellow light here is the single yellow, without mixing.
Essentially, light is a electromagnetic wave with a certain wavelength. The transmission of light includes direct, reflection, refraction, scattering, etc.. Due to its wavelength, yellow light, when spread, features the least refraction and scattering. Therefore, it has the strongest penetrating ability. So, that’s why yellow light is used in traffic lights, fog lights, etc.
Therefore, when it is foggy, a yellow light flashlight is a good choice.
Red
Another common color light is red light. It is also one of the traffic lights. In addition to this application, red light flashlights are widely used for hunting. Here is why.
There are two types of light-sensitive tissues in human’s retina: cone cells and rod cells. Cone cells distinguish colors and the rod cells distinguish the outline of objects. It is right thanks to the cone cells in the retina, people can distinguish colors. But many animals only have rod cells or few cone cells, so they can hardly or not see color lights. That’s why red flashlights can great improving the efficiency of hunting.
After reading the above description, I believe you know how to choose the best flashlight according to your needs. Currently on the market most are white light flashlight, it is difficult to find other flashlights. In practice, the outdoor professionals by adding colored filters on white flashlight to change the light color .