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Why Different Colored Beams are there in a Flashlight

Why Different Colored Beams are there in a Flashlight


Tank007 F2 double lighing sources (white & UV) flashlight

You may encounter some flashlights with colored LEDs. If you are like me, then you wanna know why they are there. Maybe you think these lights are in the beautiful purpose or just for fun. Regardless of whether or not, different colored beams have practical use. Take a look:

Red: Red may be the most common LED color you see. I have a headlamp, i take camping and backpack, it has some different settings, including a red LED. At first I did not know what the red light was, so I totally avoided using it. But it turns out that the red light can help you keep your night vision, so they are ideal for carrying camping, hiking, backpacking, hunting or any place. Some people say they are also great in the black smoke environment.

Blue: When the injured animal tracks the blood, the hunter usually uses the blue light. The blood may be difficult to find in white light (and apparently red), but it is easier to see under blue light. Blu-ray is also better used for fog than white light.
Green: For hunters and fishermen, the green light is very good, because they are unlikely to play the game. Some people say this is because some animals are harder to see green than white or other colors of light.

Ultraviolet light: Ultraviolet light has many different applications, here are some:

◆ Check the leaks for air conditioner and automobile circulatory system
◆ Mark and blood inspection, examination of crime scene.
◆ Treasure and minerals searching, Antique appraisal
◆ Ink curing and glue curing.
◆ Counterfeit and banknotes distinguishing
◆ Gas leaks inspection
◆ Fluorescent reflection of special materials

For more details, go to:

So, do you know the uses of different colored beams?