The Science Behind Choosing a Red or Green Light for Night Hunting (2024)

This weeks blog will be exposing some of the hottest topics of night hunting:

1 - What is a night hunting light?

2 - Is a red or green light best for hog hunting?

3 - Is a red or green light best for predator hunting?

4 - Is a red or green light best for varmint hunting?

This age old question has some of the strongest, most opinionated answers that vary from amateurs to professionals. Normally I would give a short answer to this question upfront but due to the continued controversy we receive from our friends, followers, customers and even family, the answer will come after the scientific facts are presented.

What is a Night Hunting Light?

A night hunting light is a tool used to illuminate animals for harvest during a period of time between one hour after official sunsetof a day and one hour before official sunrise of the following day.

Night hunting lights arecommonly used for tracking, spotting, and harvesting hogs, varmints, and predators. The best night hunting lights are designed with the understanding of how the vision of these target species function. It is important to choose a night hunting light that is best suited for the species you are targeting.

Science Behind Night Hunting Lights

In humans, color blindness is the result of photopigment defects in three different types of cones that respond to blue, green, and red light. The most common color blindness is red-green, followed by blue-yellow, and the total absence of color vision - total color blindness - is extremely rare. Humans are very unique in this sense, we have trichromatic vision which means we have three pigment cones to blend colors together.

Wild hogs, pigs, varmints, predators, and all other mammals have dichromatic vision which means they only have two pigment cones to blend colors together. Many other animals that are not mammals only have one pigment cone which means they see in black and white.

To further expand, hogs, varmints, and predators can see low wavelength light well (blue light), but as the wavelength increases they have a hard time visually processing the light.

Hint: blue jeans stick out to deer and most other animals like a sore thumb!

The approximate wavelength at which these dichromatic vision mammalsgo color blindis in the range of 520 nm to 540 nm. This is the core of the "true green" light color range. Ourhunting lightsare approximately 540 nm wavelength, as are most other green hunting lights made by reputable manufacturers. It is important to note that the level of color blindness can vary and is not necessarily exact to a certain wavelength.

The Science Behind Choosing a Red or Green Light for Night Hunting (1)

The green light wavelengths range from a blue-green in the low 400 nm range, to solid green in the 520 to 540 nm range, and then a yellow-green in the 560-580 nm range. The official red color by manufacturing standards starts at 620 nm wavelength. This color visually appears to have an orange tint in it to humans but the red we are most familiar with, a true red, is approximately 660 nm.

We use 660 nm wavelengthin both our Predator Cannon Hunting Light and our traditionalbow hunting lights, which is actually tremendously more expensive than the manufacturing standard 620 nm due to the higher wavelength but we've chosen to maintain quality assurance. To reiterate, the approximate maximum wavelength dichromate vision animals (all mammals except humans) can process is 540 nm. This is a true green light. These same animals cannot visualize red at 660 nm, which is 120 nm above green on the color spectrum.

Although varmints, hogs, predators, and even deer can't see red, that doesn't mean you can blast them with a red spotlight and they won't take off.

It simply means if you have a light mounted to your feeder, for example, and leave it onat high enough intensity to light up the area but not a blinding intensity, the red light will produce better results than white or green the majority of the time. We've seen hogs, bobcats, fox, coons, and even deer walk under thewide flood beam of the Predator Cannon.

When you increase any light intensity, especially abruptly while the animal is standing there, the animals can feel it just like a white spotlight being shined in our face. This is part of the reason of why all our lights have remote controlled dimming capabilities - you can slowly increase the light intensity or slowly decrease the light intensity and turn the light on or off. Another thing to consider if the animal is not looking at you is the fact that bright lights cast very apparent shadows. White light will cast the most apparent shadow followed by green and then red casts the least apparent shadow.

The Best Color Light for Night Hunting

Now that you've read the scientific evidence, I can give you the short answer - red is the better light for night hunting. On the contrary end, we've noticed that most consumers will purchase green light because they associate it with night vision. We sell both color lights because we want to support our customers needs, but please do not confuse night vision and green light. They are not the same. Most lower end night vision will use infrared light while the higher end thermals use heat. Neither of these have anything to do with green light. In comparison with red and green light, these both are more efficient but they also require more expensive tools to get the job done. Green light casts the most apparent shadow and is easier for animals to detect that red light.

Best color light for hog hunting

Despite the popularity with green hog hunting lights, the best color light for hog hunting is actually red.Whether you want to call them feral pigs, wild hogs, or swine, they are dichromate vision mammals and their vision follows the criteria discussed above. Hogs seem to be less observant in comparison to predators, which may be the reason green still works with some hogs. If you want the best color light for hog hunting, you should choose a red hog hunting light.

Best color light for predator hunting

The best color light for predator hunting is red. Coyotes are natures premier predator, and they are very observant and aware of their surroundings. This is common among all of the top predators, because unlike hogs, they are much harder to trick. In order to maximize your chances at harvesting predators while hunting, you have to take full advantage of their weaknesses.

As we previously discussed, make sure your predator hunting light is geared to fit the proper wavelength of light and is capable of adjustable intensity controls, so you can remain in the shadows while illuminating the predators in the pasture. Adjustable intensity is equally important as having the right color light.

Best color light for varmint hunting

The best color light for varmint hunting is red. Varmints, like predators and hogs, are also classified as dichromate vision mammals and their visual spectrumis most susceptible to red light. As discussed above, the lower wavelength lights are easier for varmints to distinguish in comparison to a true red wavelength light.

LearnHow to use Light while Night Hunting

Just because your target species is color blind, doesn't mean you can blast them with full intensity and they won't see it. Humans are not able to see infrared light but if you take an infrared light and shine it straight in your eye (I don't recommend actually doing this) you will see and feel the source of the light.

This is why it's important to learn how to use light to your advantage. I strongly suggest you read this article on How to Use Light to Bring in More Predators once you've pulled the trigger on your next night hunting light. The strategy and methodology behind using the predator hunting light properly is crucial.


If you've found this informative and you want to learn more about choosing your night hunting light, check out our ultimate guide: The Best Coyote Hunting Light: 5 Features You Must Have

Outrigger Outdoors is your trusted source forpredator hunting lights. Shop our product selection to learn more! Have questions? Contact us!

The Science Behind Choosing a Red or Green Light for Night Hunting (2024)

FAQs

The Science Behind Choosing a Red or Green Light for Night Hunting? ›

Red light has a shorter wavelength, making it less visible to most nocturnal creatures. On the other hand, green light has a slightly longer wavelength, offering a balance between visibility and stealth. The pivotal factor lies in the eyes of the animals Many species, including hogs, are less sensitive to red light.

Is red or green light better for night hunting? ›

Red Light For Hunters: What To Know

Most target animals can't detect red light due to a specific color blindness known as protanopia dichromacy. This makes red the most effective setting for both detecting animals' eyes through thick grass or brush and remaining unnoticed.

Is red light better than green light for night vision? ›

Red light carries lower energy than white, green, or blue light. It's the least likely to trigger the light-sensitive cells in our eyes and disturb our night vision. So, if preserving your night vision is the main priority, red light reigns supreme.

Do deer see red or green light? ›

Their color vision is limited to the short (blue) and middle (green) wavelength colors. As a result, deer likely can distinguish blue from red, but not green from red, or orange from red. Therefore, it appears that hunters would be equally suited wearing green, red, or orange clothing but disadvantaged wearing blue.

Can animals see red or green light? ›

These same animals cannot visualize red at 660 nm, which is 120 nm above green on the color spectrum. Although varmints, hogs, predators, and even deer can't see red, that doesn't mean you can blast them with a red spotlight and they won't take off.

Why use red or green light at night? ›

It is generally considered that red breaks down rhodopsin more slowly and, if preserving night vision is the main objective, red is better. But green light penetrates a little better, and shows more detail. It may be preferred for distance vision, and for close up clarity, such as reading instruments or maps.

Can coyotes see green light at night? ›

Coyotes are color blind by nature and because of this, the best color light for coyote hunting is red. They have a hard time seeing green as well, but red is a better color because it is a higher wavelength and gives you some "buffer" from the cut off of what wavelength light their eyes are able to see.

What color light destroys night vision? ›

Most modern 'white' LEDs used for general purpose lighting use a blue LED with a yellow phosphor. The combination of blue from the LED itself plus the yellow fluorescence from the phosphor yields white light. -> And that blue light will ruin your night vision without your being aware of it.

What is the hardest color to see at night? ›

So, What Are the Hardest Colors To See? The short answer is Red. The red color is the hardest to see in the darkness. The cones recognize the color and send a message to our brain.

Why does the military use red light at night? ›

Soldiers and law enforcement personnel can perform nighttime operations in tactical and military situations without sacrificing their night vision. Red light also reduces the risk of giving away their position to potential adversaries.

What color do deer avoid? ›

Brightly colored flagging can help deer avoid contact with the fence​. Flagging should be in the blue to yellow spectrum and attached at waist height in 3 foot intervals along the fence. These colors are recommended as deer have dichromatic vision and do not process the color red, orange or pink as well.

Can deer see blue jeans? ›

Research tells us deer have extra sensitivity to ultraviolet light, which makes blue jeans highly visible to them.

Can deer see navy blue? ›

Neither deer, nor our canine friends live in a black-and-white world, but instead have dichromatic vision- that is, they can see all hues of blues and yellows, but they are red-green color blind. This dichromatic vision makes deer unable to see most shades of color, but it heightens visual sensitivity to movement.

Can coyotes see red light in the dark? ›

Today, many hunters still use lights for their night hunts. I will venture to say that red is the most common light used — which leads us to our first myth: Coyotes can't see red lights, so they don't spook. Not true. Coyotes see red as a dingy shade of yellow — they see the light, but they just don't know what it is.

Can hogs see red light at night? ›

The Swine's Eye

Animals with only 1 cone in their eyes see only black and white. As you can see, pigs fall in the middle. This means that while they are not colorblind, they struggle to see certain color wavelengths. Hogs can detect the color blue but struggle with colors on the green and red spectrum.

What colors can a coyote not see? ›

Their spectrum of colors is more limited than ours, but they should technically still see color. Red, orange, and green are beyond the visible spectrum of a coyote, however they can detect ultraviolet light, which is normally invisible to humans.

What is the best light for deer hunting at night? ›

What Is the Best Hunting Flashlight?
  • Best Hunting Flashlight Overall: Streamlight Wedge XT.
  • Brightest: Olight Warrior X 3.
  • Best Green and Red: Fenix HT18R Long-Distance.
  • Best Headlamp: LedLenser HF8R Signature.
  • Best Blood Tracking: Primos Hunting Bloodhunter HD.
  • Best Budget: ThruNite Archer 2A V3.
Feb 7, 2024

What color of light is best for night? ›

The best night light colors for sleep are red and amber, as they are warm and soothing colors that promote a good night's sleep. It's thought that colors close to red on the light spectrum stimulate melatonin production. Red light has a lower color temperature than regular sunlight, making it ideal for sleep.

What is the best color light for night vision? ›

It is an interesting trait that deep red lights do not trigger the neutralization of the rhodopsin, so astronomers and safety officials use red lights for night lighting to allow night vision to continue.

What color light is best for deer hunting? ›

White-light lamps tend to work best in open spaces, whereas red-light lamps offer better visibility in dense forests. You should also take into account how much light you need.

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