Fenix TK72R Review 2025 [9000 Lumen rechargeable flashlight]

Last Updated on September 14, 2025

I have been a Fenix flashlight lover for many years, but never have I come across such a powerful and convenient LED flashlight as the Fenix TK20R light. My first Fenix flashlight was the Fenix E12, which I owned while I was in college, then, later I acquired the Fenix PD35 which I have used for the past 3 years and loved every bit of it. But after I stumbled on the TK72R LED flashlight, I was amazed and had to buy it right away. Read this Fenix TK72R Review to know more about this rechargeable flashlight.

Related: Fenix TK75 Review [5100 Lumen LED Flashlight]

For the few months that I’ve owned this Fenix TK72R, it has definitely lived up to its expectations and that’s why I decided to write this review and share my experience with you. The Fenix TK72R 9000 Lumen light is sturdily made for longevity.

Ready to light up your next adventure? Read on.

Related: Fenix TK75 Review [5100 Lumen LED Flashlight]

Technical Specifications of the Fenix TK72R Flashlight:

Features	Fenix TK72R
Lumens:	9000 lm
Type of Bulb:	LED
Waterproof:	IP68-rated protection (Submersible to 6.56 ft./2 meters for 30 minutes)
Low-voltage warning function:	Yes
Can operate as a power bank:	Yes
Maximum Beam Intensity:	24,000cd
Stepped light regulation:	2-way selection
Batteries:	1 Lithium ion batteries required. (included)
Micro USB Rechargeable:	Yes
Output modes plus strobe:	Highest 9000 lumens (938 feet/286 meters – ANSI standard = 50 minutes) Lowest 100 lumens (50 hrs.) Strobe 4000 lumens
Warranty:	5-year
Price:	Check Today’s Price

Fenix TK72R Review 2025

Design & Build – Rugged Engineering Behind the Fenix TK72R

When starting this Fenix TK72R Review, the first thing to highlight is the flashlight’s impressive design and build quality. Unlike smaller tactical lights you can slip into a pocket, the TK72R is built more like a portable searchlight—large, solid, and ready for demanding use.

Size & Dimensions

• Length: 6.1 inches (156 mm)
• Head Diameter: 2.3 inches (59 mm)
• Body Diameter: 2 inches (50 mm)
• Weight: About 14.5 oz (412 g) without the battery

This size may feel hefty, but it balances well in the hand, making it practical for search operations or professional use where stability matters.

Material & Finish

Fenix uses high-strength aluminum alloy with a Type III hard-anodized anti-abrasive finish, ensuring resistance to scratches and wear. The housing is both sleek and robust, giving it a professional, no-nonsense appearance.

Lens & LED Protection

The lens is toughened ultra-clear glass with an anti-reflective coating, protecting the three high-performance Cree XHP70 LEDs while maintaining maximum light transmission.

Grip & Handling

The body is designed with fine knurling and six grip slots, allowing secure handling even in rain or when wearing gloves. This thoughtful design ensures the flashlight won’t slip during critical moments.

Durability Standards

• Waterproof Rating: IP68 (submersible up to 2 meters for 30 minutes)
• Dustproof: Completely sealed against dirt and particles
• Impact Resistance: Withstands drops and rough handling without compromising performance

Overall, the Fenix TK72R doesn’t just look like a rugged tool—it truly is one. From the anodized finish to the durable glass lens, every detail reflects Fenix’s reputation for making flashlights that thrive in extreme environments.

Lighting & Performance – The 9,000-Lumen Powerhouse

No Fenix TK72R Review would be complete without diving into the flashlight’s most celebrated feature—its incredible lighting performance. With a peak brightness of 9,000 lumens, the TK72R easily ranks among the most powerful tactical flashlights ever made.

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Triple LED Power

At its core, the TK72R is driven by three Cree XHP70 LEDs, each engineered for around 50,000 hours of lifespan. These LEDs are known for their brightness, efficiency, and reliability, making them a natural fit for a high-performance tactical model.

Adjustable Brightness – Precision Control

Unlike many flashlights with preset modes, the TK72R offers unmatched control:

• Range: Adjustable from 100 lumens to 9,000 lumens
• Increments: Fine-tuned in 100-lumen steps or rapid 1,000-lumen jumps
• Flexibility: Whether you need a soft glow for reading a map or a daylight-like beam for search and rescue, the TK72R adapts instantly.

This flexibility is what sets the TK72R apart. Instead of being limited to “low/medium/high/turbo,” you get a customized output for any situation.

Beam Distance & Coverage

At maximum brightness, the flashlight throws light up to 938 feet (286 meters). The beam profile is a balanced mix of spotlight intensity and floodlight spread, making it effective for:

• Wide-area illumination during outdoor exploration
• Long-distance targeting in tactical or rescue missions
• Everyday use at lower settings without overkill brightness

Runtime Performance

• Low Output (100 lumens): Up to 50 hours
• High Output (9,000 lumens): Roughly 50 minutes
• Mid-range settings: Offer practical balance between brightness and endurance

The digitally regulated output ensures stable brightness without flicker, even as the battery drains.

Intelligent Overheat Protection

Running at 9,000 lumens generates significant heat. Fenix integrated thermal control circuitry, which automatically reduces brightness once internal temperatures exceed 65°C. This prevents damage and ensures safe operation during prolonged use.

Operation & Controls – Intuitive and Feature-Rich Interface

One of the highlights of this Fenix TK72R Review is how user-friendly yet advanced the controls are. With a flashlight this powerful, ease of operation is crucial—and Fenix nailed it with a smart button layout and a built-in digital display.

Triple-Button Layout

The TK72R features three stainless-steel side switches, conveniently placed on the head for easy thumb control:

Power Button (Center “Fenix” Button):

• Hold for 0.5 seconds to turn on or off.
• Single-click for Turbo mode (max output).
• Long press activates Strobe mode for emergencies.

Plus (+) Button:

• Increases brightness in 100-lumen increments per click.
• Hold to ramp brightness in 1,000-lumen steps for faster adjustment.

Minus (–) Button:

• Decreases brightness in the same precise steps.
• Press and hold for quick adjustments down to your desired level.

This layout allows both fine-tuned control and rapid adjustments, giving you exactly the light level you need in seconds.

OLED Digital Display

Unlike most tactical flashlights, the TK72R comes with an OLED screen on its head—a feature that makes it feel futuristic and highly practical. The display shows:

• Current lumen output (so you know exactly how bright the light is)
• Remaining runtime (calculated in real-time based on brightness and battery)
• Battery percentage (so you’re never caught off guard)
• Charging/discharging icons when plugged in as a charger or being charged

This level of feedback is a game-changer. Instead of guessing how much battery is left, you have real numbers on screen.

Quick-Access Modes

• Press Minus while off → Activates 200 lumens (ideal for indoor use or reading).
• Press Plus while off → Activates 5,000 lumens instantly.
• Press Power once → Full Turbo at 9,000 lumens.

These shortcuts save time when you’re in a rush, making the TK72R practical for tactical or emergency situations.

Safety & Lockout Function

To prevent accidental activation (which could drain the battery or cause dangerous overheating in a bag), the TK72R has a lockout mode. Simply double-click the power button when off, and the light locks until reactivated.

Additional protections include:

• Reverse polarity protection (if batteries are inserted incorrectly)
• Overheat regulation (auto-step down when too hot)
• Low-voltage warning (alerts you to recharge before total drain)

Power & Battery – Long-Lasting and Multi-Functional

In this Fenix TK72R Review, one of the most impressive aspects is its power system. With a flashlight this bright, battery performance is everything—and Fenix designed the TK72R to deliver both long runtimes and versatile charging options.

High-Capacity Battery Pack

The TK72R comes equipped with a dedicated rechargeable Li-ion battery pack:

• Model: ARB-L45-14000
• Capacity: 7,000 mAh, 7.2V (equivalent to 14,000 mAh at 3.6V)
• Type: High-performance lithium-ion pack

This isn’t a set of AA batteries—it’s a purpose-built powerhouse designed to feed 9,000 lumens of output.

Runtime Performance

Fenix balances brightness with endurance beautifully:

• Low Mode (100 lumens): Up to 50 hours of runtime
• Medium Output (1,000–3,000 lumens): Several hours of steady light, perfect for hiking or work use
• Turbo Mode (9,000 lumens): About 50 minutes, enough for emergency search or tactical deployment

Thanks to digitally regulated output, brightness remains stable until the battery voltage drops, rather than dimming gradually like cheaper flashlights.

Charging System

The TK72R features built-in charging via micro-USB:

• Charging Time: Around 6 hours (depending on adapter quality)
• Indicator: The OLED screen displays charging status and battery percentage
• Port Protection: A rubber cover seals the port, keeping the IP68 waterproofing intact

Unlike many flashlights, you don’t need a separate charger—the pack charges directly inside the flashlight.

Power Bank Functionality

What makes the TK72R unique is its dual role as a power bank:

• Features a standard USB output port
• Provides up to 2A output current
• Can charge smartphones, GPS devices, or radios in emergencies
• OLED screen even shows a discharging icon when used as a power bank

This is especially useful for camping trips or disaster preparedness, where having both light and backup power in one tool is invaluable.

Battery Replacement & Maintenance

Unlike some sealed designs, the TK72R’s battery pack is removable and replaceable. This means:

• When the battery reaches the end of its life, you can simply buy a new pack.
• No need to replace the entire flashlight.
• Extends the overall value and longevity of the product.

Fenix also backs the TK72R with a 5-year limited warranty on the flashlight and 1-year warranty on the battery, ensuring peace of mind.

Pros & Cons – The Real Strengths and Limitations of the Fenix TK72R

Every detailed Fenix TK72R Review must weigh the advantages against the drawbacks. While this 9,000-lumen monster is one of the most impressive tactical flashlights ever built, it does come with considerations. Let’s break it down.

✅ Pros – Why the Fenix TK72R Stands Out

1. Unmatched Brightness

   • With 9,000 lumens at peak, the TK72R competes with small spotlights rather than ordinary flashlights.

   • Ideal for search and rescue, law enforcement, or anyone who needs extreme illumination.

2. Precise Brightness Control

   • Adjustable from 100 lumens to 9,000 lumens in 100-lumen increments or 1,000-lumen jumps.

   • Offers more control than standard “Low/Med/High” flashlights.

3. OLED Display

   • Real-time readouts of output, runtime, and battery life.

   • Removes guesswork and ensures you’re always prepared.

4. Long Runtime Options

   • Up to 50 hours at 100 lumens, making it reliable for extended trips.

   • Even at high output levels, the regulated performance is stable and dependable.

5. Durable & Weatherproof

   • IP68-rated waterproofing: survives 2 meters underwater for 30 minutes.

   • Shock-resistant body with Type III anodized finish for scratches and drops.

6. Power Bank Functionality

   • Charges phones, GPS units, or other devices via USB output.

   • A lifesaver during power outages or emergencies.

7. Replaceable Battery Pack

   • The dedicated ARB-L45-14000 pack is removable.

   • Extends product life since you can swap batteries rather than replace the entire flashlight.

❌ Cons – What You Should Consider

1. Large & Heavy

   • At over 14 oz (without battery), this is not an EDC (everyday carry) flashlight.

   • Best suited for gear bags, not pockets.

2. Heat Management

   • At maximum output, the flashlight heats up quickly.

   • Built-in step-down protection works well, but sustained turbo isn’t practical for long durations.

3. Price Point

   • Originally priced around $329.95, it’s a premium purchase.

   • Might be out of reach for casual users or those who only need moderate lighting.

4. Discontinued Status

   • Fenix has discontinued the TK72R, so it may be harder to find new stock.

   • Replacement battery packs might also become limited over time.

5. Not for Everyday Use

   • While versatile, it’s overkill for household chores or dog walks.

   • More of a professional tool or specialty flashlight than a daily companion.

Comparison between the Fenix TK72R and the Fenix TK75 flashlights:

Specification	Fenix TK72R	Fenix TK75 (2018 Edition)
LED	3 x Cree XHP70	4 x Cree XHP35 HI
Maximum Output	9000 lumens	5100 lumens
Beam Distance	286 meters	850 meters
Dimensions	Length: 156mm Body Diameter: 50mm Head Diameter: 59mm Weight: 412g	Length: 188.3mm Body Diameter: 53mm Head Diameter: 88mm Weight: 630g (excluding batteries)
Battery	Built-in 7000mAh rechargeable battery pack	4 x 18650 rechargeable Li-ion batteries (not included)
Charging Method	Micro USB charging port	Micro USB charging port on battery holder
Special Features	OLED display showing runtime, output, and battery status Power bank function to charge other devices	Dual stainless steel side switches Lockout function Instant Turbo and Strobe modes
Water Resistance	IP68 (submersible up to 2 meters)	IP68 (submersible up to 2 meters)
Price	Check Price	Check Price

Who Should Buy the Fenix TK72R?

The TK72R isn’t built for everyone—it’s made for people who truly need extreme performance in their flashlight. It’s best suited for:

• Search & Rescue Teams – The ability to instantly blast 9,000 lumens can make the difference when locating someone at night or in harsh conditions.
• Law Enforcement & Security Professionals – Tactical users will appreciate the instant Turbo and Strobe functions, along with the OLED display for battery management.
• Outdoor Adventurers – Cavers, hikers, and explorers who want a flashlight that can run for 50 hours at low levels yet also deliver daylight-like brightness on demand.
• Emergency Preparedness Enthusiasts – With its power bank function and rugged build, the TK72R doubles as a survival tool for blackouts, storms, or disaster scenarios.
• Flashlight Enthusiasts & Collectors – For those who love owning high-performance lights, the TK72R is a legendary model, even though it’s discontinued.

Troubleshooting table for the Fenix TK72R flashlight:

Issue	Possible Cause	Solution
Flashlight not turning on	– Battery not properly charged – Lockout function activated	– Ensure the battery pack is fully charged using the provided Micro USB cable – Check if the lockout function is engaged; if so, unlock the flashlight by rapidly double-clicking the power button
Overheating during use	– Extended use at high brightness levels	– The TK72R has an intelligent overheat protection system that reduces output when the temperature exceeds 65°C. Allow the flashlight to cool down; it will automatically restore the previous brightness level once cooled
Battery drains quickly	– High-output mode used continuously – Parasitic drain when off	– Use lower brightness settings for extended runtime – Ensure the flashlight is turned off properly; consider engaging the lockout function during storage to prevent accidental activation

Is It Worth the Price?

While originally priced at around $329.95, the TK72R delivered performance and features that justified the cost:

• Extreme power (9,000 lumens)
• Unique OLED display with real-time data
• Flexible brightness control (from 100 lumens up to Turbo mode)
• Replaceable high-capacity battery pack
• Dual function as a flashlight + power bank

Compared to other high-lumen tactical lights, the TK72R still stands tall as a feature-packed investment. The only drawback today is its discontinued status, which may make it harder to source or service in the long run.

Final Thoughts

The Fenix TK72R Review proves one thing: this flashlight is not just another tactical torch—it’s a portable lighting system. From its tank-like build to its 9,000-lumen beam, OLED interface, and versatile power system, the TK72R redefines what a flashlight can be.

Yes, it’s heavy, pricey, and perhaps overkill for casual users. But for professionals, adventurers, and preparedness enthusiasts, it offers peace of mind, reliability, and unmatched performance.

FAQ

Question: Can I use this flashlight when it is recharging?
Answer: Yes, you can. The Fenix TK72R can be turned when you’re recharging but you will only be able to use up to 100 lumens and not the maximum 9000 lumens. This is one of the most powerful and convenient flashlights that you will ever come across.

Question: Can this flashlight cause permanent eye damage?
Answer: This is the most powerful Fenix LED flashlight that you will ever come across. And for that reason, the manufacturer has warned users and stated clearly that it should not be used by children or if so, they should be under supervision. Additionally, this flashlight should not be shown in a person’s eyes as it might cause damage to the eyes. The manufacturer also warns that the flashlight is very powerful and can cause a fire when holding the beam to flammable materials like cardboard, paper, fabric, etc. It also can burn exposed skin up to 1 meter.

Still, have a question after reading this Fenix TK72R Review? Comment below.