Apart from signaling, LEDs in red, green and blue also have other uses. While red light is good for seeing at night, the human eye can see green light especially clearly. Both colors are also said to scare off game much less than white light. Blue light, on the other hand, is good for fishermen, because it doesn't scare off fish. However, contrary to a common rumor, you can definitely not locate blood with blue light.
Apart from signaling, LEDs in red, green and blue also have other uses. While red light is good for seeing at night, the human eye can see green light especially clearly. Both colors are also said...
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Colored LEDs
Apart from signaling, LEDs in red, green and blue also have other uses. While red light is good for seeing at night, the human eye can see green light especially clearly. Both colors are also said to scare off game much less than white light. Blue light, on the other hand, is good for fishermen, because it doesn't scare off fish. However, contrary to a common rumor, you can definitely not locate blood with blue light.
