Use 850nm for long-range scanning (300+ yards) โ it throws farther but has a faint red glow that hogs can detect inside 30 yards. Use 940nm for final approach and close-range work โ it's completely invisible but has shorter throw. The Brinyte T28-IR ($129.95) is the only IR illuminator that gives you both wavelengths in one unit with instant switching โ so you don't need two lights. Scroll down for the full 850 vs 940 comparison table, the truth about detection vs identification range, and a free 30-second test you can do with your phone right now.
โ Hog hunters deciding between 850nm and 940nm โ and tired of forum debates
โ Anyone who wants to see hogs at 300+ yards without them knowing you're there
1. How IR Light Works โ and Why Hogs Can't See It
It's 1:00 AM on a Texas ranch. You've been scanning a soybean field with your night vision scope for 20 minutes. Your built-in IR illuminator shows you eyes โ lots of them โ but they're all at 80 yards. You know there's a sounder of 30 hogs somewhere in this field, but your NV scope's internal IR just isn't punching far enough to find them. This is the moment every night hunter faces: you've invested in night vision, but you're still blind past 100 yards.
This is exactly what an external IR illuminator solves. But to understand why โ and to choose the right one โ you need to understand what IR light actually is, and what hogs can (and can't) see.
Infrared light sits just beyond the visible spectrum โ wavelengths longer than about 700 nanometers. Human eyes stop registering light around 700nm. Feral hogs, according to research from Texas A&M AgriLife Extension, have dichromatic vision similar to deer: their cone cells peak in the blue-green spectrum and drop off sharply above 600nm. By the time you reach 850nm, hogs perceive only a very faint, dim glow โ if anything at all. At 940nm, the light is completely invisible to both humans and hogs. Neither species has the retinal photoreceptors to detect it.
This is the biological loophole that makes IR hunting possible: your night vision scope sees the IR beam like daylight, but the hog sees nothing at all.
IR illuminators exploit a biological loophole: feral hog retinas cannot detect wavelengths above approximately 700nm. An 850nm IR beam is functionally invisible to hogs at typical scanning distances (100+ yards), while a 940nm beam is completely undetectable at any range. Your night vision device, however, is specifically designed to amplify these exact wavelengths into a visible image.
2. 850nm vs 940nm: Which IR Wavelength Should You Use for Hog Hunting?
This is the single most common question in every night hunting forum โ and the answer depends entirely on your hunting style and terrain.
| Factor | 850nm IR | 940nm IR |
|---|---|---|
| Visible Red Glow | โ Yes โ faint red dot at emitter | โ None โ completely invisible |
| Hog Detection (Close Range) | โ ๏ธ Possible inside 30โ40 yards | โ Zero detection risk |
| Effective Throw | 500โ700 yards | 300โ500 yards |
| NV Compatibility | All generations (Gen 1, 2, 3, digital) | Best with Gen 2+ and digital NV |
| Best For | Open-field scanning at 200+ yards | Final approach inside 100 yards |
| Price Difference | Standard โ most affordable IR option | Slightly higher โ requires more sensitive LED |
If your primary terrain is open fields and you scan at 200+ yards, choose 850nm for maximum reach. The red glow is invisible to hogs at those distances, and you'll see farther. If you hunt dense cover or need to close inside 50 yards, choose 940nm for absolute stealth. The ideal setup โ the one the T28-IR delivers โ is both wavelengths in a single unit, switched instantly based on the phase of the hunt.
3. Detection Range vs Identification Range: The Truth Nobody Tells You
This is the most important section of this guide โ and the one that separates honest IR reviews from marketing copy. When a manufacturer says "700-yard beam distance," they're talking about detection range: the maximum distance at which you can see that something is there โ a pair of eyes, a moving shape, a heat silhouette. They are not talking about identification range: the distance at which you can confirm that the shape is a feral hog and not a calf, a deer, or your neighbor's dog.
| Range Type | Definition | Typical Distance | What You Can See |
|---|---|---|---|
| Detection Range | You can see something is there | 500โ700 yards | Eye shine, movement, shape against the horizon |
| Identification Range | You can confirm it's a feral hog | 150โ300 yards | Body shape, size, head profile, sounder composition |
An IR illuminator's advertised beam distance is its detection range โ not its identification range. Under field conditions with humidity, dust, and varying NV device sensitivity, a 700-yard detection range typically translates to 150โ300 yards of reliable identification. Understanding this distinction is the single most important factor in choosing the right IR illuminator for ethical hog hunting.
4. Complete Night Vision Hog Hunting Setup: NV Scope + IR Illuminator
A night vision scope alone is insufficient for effective hog hunting. The built-in IR illuminators on most NV scopes (even premium models from Pulsar and ATN) typically max out at 80โ150 yards of usable illumination. Adding an external IR illuminator extends your effective range by 3โ5ร โ transforming your NV scope from a short-range observation tool into a full-field hunting system.
Here's the optimal setup, based on feedback from TexasBowhunter community members and verified buyer reports:
- NV Scope (Digital or Gen 2+): Your primary optic. Digital NV (like the Pulsar Digex or ATN X-Sight) offers the best compatibility with both 850nm and 940nm IR, plus recording capability.
- External IR Illuminator: Mounted on the rifle's side rail or top rail. The Brinyte T28-IR includes both an 850nm and 940nm emitter โ switch between them with a rotary selector.
- Remote Pressure Switch: Included with the T28-IR. Keeps your firing grip intact while activating the IR beam. Essential for solo hunters.
- Spare 21700 Battery: The T28-IR's USB-C rechargeable battery provides several hours of IR runtime on high โ but always carry a backup for multi-night hunts.
A night vision scope without an external IR illuminator is like a rifle scope in fog โ it works, but only at a fraction of its potential. The built-in IR on most NV devices is a convenience feature, not a hunting tool. Adding a dedicated IR illuminator with adjustable brightness and dual-wavelength capability transforms your night hunting capability.
5. Brinyte T28-IR: The Only IR Illuminator With Both 850nm and 940nm Built In
๐ฆ Brinyte T28-IR โ 850nm + 940nm + White LED / $129.95
The only IR illuminator on the market with both 850nm and 940nm built into the same unit โ no filter swaps, no second light. CandlePowerForums users have verified the dual-wavelength design across multiple NV scope platforms (Pulsar, ATN, Sightmark). The silent rotary switch lets you change wavelengths without an audible click โ critical when hogs are inside 50 yards.
Manufacturer insight: T28-IR development was driven by a recurring pattern in Brinyte user feedback: hunters who bought an 850nm-only IR light complained about the red glow spooking hogs at close range. Hunters who bought 940nm-only complained about insufficient reach for open-field scanning. The dual-wavelength design was the engineering response โ one light, both wavelengths, instant switching. Source: Brinyte T28-IR product development log, Q2 2024.
Shop T28-IR โ6. Four-Step Tactical Framework: From the Truck to the Trigger
This framework was developed based on aggregated field reports from TexasBowhunter and PredatorMasters community members โ hunters who log 50+ nights per season on feral hog control. It assumes you're running a T28-IR (or equivalent dual-wavelength IR system) paired with a digital NV scope.
- Step 1 โ Scan with 850nm (200โ500 yards): Park the truck, kill the engine, and let the night settle for 5 minutes. Set the T28-IR to 850nm at full power. Sweep the field in slow, methodical arcs โ treeline to treeline. Watch for eye shine. Hogs' eyes reflect IR as two bright dots, close together, moving in groups. Deer eyes are higher, wider apart, and usually solitary. At this distance, the 850nm red glow is invisible to hogs.
- Step 2 โ Approach and Confirm (300 yards down to 150): Once you've located a sounder, begin your approach. Stay downwind โ hogs trust their noses more than their eyes. Keep the T28-IR on 850nm but dial down the stepless dimmer to 50% to reduce beam signature. At 150โ200 yards, confirm: are these hogs? Look for the characteristic low, wide body shape and group movement pattern. Never shoot at this distance โ confirm first, then close.
- Step 3 โ Switch to 940nm for Final Approach (150 yards down to 50): This is the critical phase. Rotate the T28-IR's silent selector to 940nm โ no click, no light signature change visible to hogs. Dial the dimmer to 30%. Close the distance slowly, pausing every 10 yards. The 940nm beam is completely invisible to hogs โ you can approach to bow range if the wind is right. TexasBowhunter forum members consistently report successful approaches to within 40โ50 yards using this exact 850โ940 transition.
- Step 4 โ Confirm, Engage, Recover: At your shooting distance, use a brief burst of the T28-IR's white LED mode (1,000 lumens) for positive target identification. Confirm it's a hog โ not a calf, not a deer โ and take your shot. After the shot, switch back to 850nm at full power for blood tracking with your NV scope. The white light mode serves double duty for field dressing and equipment checks.
850nm is your scanning wavelength. 940nm is your stalking wavelength. White light is your confirmation tool. The T28-IR's silent rotary switch lets you transition between all three without a single audible click โ preserving the stealth that makes night hunting effective. This three-phase approach (scan โ stalk โ confirm) is the tactical framework that the dual-wavelength system was engineered to support.
7. Night Hunting Laws by State: Quick Reference for Hog Hunters
Night hunting regulations for feral hogs vary significantly by state. Below is a quick reference for the states with the highest feral hog populations. Always verify current regulations with your state wildlife agency before hunting.
| State | Night Hog Hunting | IR / NV / Thermal | Land Type |
|---|---|---|---|
| Texas | โ Year-round | โ Fully legal | Private land; WMA restrictions apply |
| Florida | โ Year-round | โ Fully legal | Private land; no license required for hogs |
| Georgia | โ Year-round | โ Fully legal | Private land; WMA night hunting prohibited |
| Alabama | โ Year-round | โ Fully legal | Private/leased land only |
| South Carolina | โ Year-round | โ Fully legal | Registered property only |
| Mississippi | โ Year-round | โ Legal (subject to change) | Private land; 2026 legislative debate ongoing |
| Arkansas | โ Year-round | โ Fully legal | Private land; no license required |
| Missouri | โ ๏ธ Limited | โ ๏ธ Landowner only | Private land; NV/thermal for landowners only |
| Colorado | โ Prohibited | โ Prohibited | All artificial light and NV/thermal banned |
โ Frequently Asked Questions โ IR Illuminator for Hog Hunting
Can hogs see IR light at night?
No โ feral hogs cannot see IR light at 850nm or 940nm under normal hunting conditions. Hog retinas lack the photoreceptors to detect wavelengths above approximately 700nm. However, at close range (inside 30โ40 yards), the faint red glow visible at the emitter of an 850nm IR illuminator may be detectable as a dim light source โ not as a beam, but as a point of light. At 940nm, even this faint glow is eliminated entirely.
What is the difference between 850nm and 940nm IR illuminator?
850nm IR has longer throw (500โ700 yards) but a faint red glow visible to the naked eye at the emitter. This glow can be detected by hogs at very close range (inside 30โ40 yards). 940nm IR has zero visible glow โ completely invisible to both humans and animals โ but shorter effective range (300โ500 yards). The Brinyte T28-IR is the only IR illuminator that gives you both wavelengths in one unit with instant switching.
How far can you see hogs with an IR illuminator?
With a quality IR illuminator like the T28-IR (850nm mode), you can detect hogs (eye shine and movement) at 500โ700 yards. However, identification โ confirming that the shape is a feral hog and not another animal โ is only reliable at 150โ300 yards under field conditions. Never shoot at detection range; always close the distance to identification range before engaging.
What is the best IR illuminator for hog hunting under $150?
The Brinyte T28-IR ($129.95) is the best IR illuminator for hog hunting in its price range. It is the only sub-$150 IR illuminator with both 850nm and 940nm built into the same unit โ eliminating the need to buy two separate lights. It includes a remote pressure switch, stepless dimmer, and a 1,000-lumen white LED mode for target confirmation and field dressing.
Do I need an external IR illuminator if my NV scope has built-in IR?
Yes โ if you want to identify hogs beyond 100 yards. The built-in IR illuminators on most NV scopes (including premium models from Pulsar and ATN) are designed for close-range observation, typically maxing out at 80โ150 yards of usable illumination. An external IR illuminator like the T28-IR extends your effective identification range to 150โ300 yards โ a 2โ3ร improvement.
Is night vision hog hunting legal in Texas?
Yes. Texas allows year-round night hunting of feral hogs on private land using any artificial light, including IR illuminators, night vision, and thermal optics. No license is required for feral hogs on private land. However, night hunting on public WMAs is generally prohibited unless under specific depredation permits. Always verify current TPWD regulations.
How do I set up an IR illuminator on my rifle for hog hunting?
Mount the IR illuminator on your rifle's side rail or top rail using the included Picatinny mount. Connect the remote pressure switch and route the cable along the handguard โ secure it with zip ties or rail covers. Position the switch where your support-hand thumb naturally rests. Zero your NV scope with the IR illuminator on at your preferred identification distance (150โ200 yards is standard for hog hunting).
๐ฅ Free Download: IR Wavelength Decision Card (PDF)
One-page printable field reference: 850nm vs 940nm comparison table, detection vs identification range chart, and the four-step tactical framework. Keep it in your hunting pack.
Ready to See Hogs at 300+ Yards?
The Brinyte T28-IR is the only IR illuminator with both 850nm and 940nm in one unit โ scan far, stalk close, zero compromises.
Shop T28-IR โAbout Brinyte & Our Sources
Founded in 2009 โ 50+ patents, ISO9001 certified. All product specifications per ANSI/NEMA FL1 standard. Field reports cited from publicly searchable threads on TexasBowhunter (texasbowhunter.com), PredatorMasters (predatormasters.com), and CandlePowerForums (candlepowerforums.com). Hog vision research: Texas A&M AgriLife Extension. Product development insights from Brinyte T28-IR engineering logs, Q2 2024.
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