Fenix LightingFenix LightingFenix Lighting
Out of stock

Fenix HL40R Focusable USB Rechargeable Headlamp

$80.00 $59.95

Shipping calculated at checkout.

Color: Black/Gray

  • Black/Gray
  • Blue/Gray

Max Lumens:


View Details

For commercial orders and large purchases, contact us at (888) 775-9996 x6 or GET A QUOTE

WARNING. Be aware of counterfeit Fenix merchandise in the U.S. marketplace. READ MORE >>


Product Overview

The Fenix HL40R rechargeable headlamp is one of the most feature-rich headlamps on the market. Rotate the headlamp’s head to adjust any of the light’s six outputs between floodlight and spotlight. The battery level indicator lets you know when to recharge the built-in battery via the micro-USB port. A 600 lumen burst (1 minute before downshift) and ultra low 4 lumen with 200 hrs of runtime highlight the six lighting modes making sure you have just the right amount of light for your activity. The overlapping headband ensures a secure fit. The HL40R is rain proof, splash proof and dust proof to IP66 rating; helping your adventure continue no matter what your environment.


Max Lumens: 600
Max Beam Distance: 482 feet (147 meters)
Max Runtime: 200 hours
Lighting Modes: 6 brightness levels, and SOS
Bulb Type: Cree XP-L HI V2 white LED
Size: Length: 2.7” (68mm) Width: 2.1” (54mm) Height: 1.7” (42mm)
Weight: 4.6 oz. (130g) including headband
Battery: Built-in 2000mAh Li-polymer battery
Included: Charging cable
Warranty: Limited Lifetime Guarantee from Fenix Lighting USA

More Information

Additional Features of the Fenix HL40R

  • Cree XP-L HI V2 white LED, with a lifespan of 50,000 hours
  • Built-in 2000mAh Li-polymer battery
  • 68mm Length x 54mm Width x 42mm Height
  • 130 grams (including headband)
  • Dual switches for fast and convenient operation
  • Micro USB port, 5V/1A charging
  • 4 battery level indicators for remaining battery level checking
  • Overheat protection protects from high surface temperature
  • Digitally regulated step-down output maintains constant brightness
  • Made of quality plastics and aluminum
Fenix HL40R Focusable USB Rechargeable Headlamp specs chart

Operating Instruction

Switches General: controls General mode, output selection and mode switching Functional: controls Functional mode, output selection and mode switching


General Mode

ON/OFF Press and hold the General switch for 0.5 seconds, the lamp will be activated at Low (no memory circuit), press and hold any switch for 0.5 seconds to turn off the lamp.


Output Selection

With the lamp switched on, single click the General switch to cycle through Eco→Low→Med→High.


Functional Mode

ON/OFF Press and hold the Functional switch for 0.5 seconds, the lamp will be activated at Reading mode (no memory circuit), press and hold any switch for 0.5 seconds to turn off the lamp.


Output Selection

With the lamp switched on, single click the Functional switch to cycle through Reading→SOS. 


Spot- and Floodlight Adjustment 

Rotate the focusing ring counterclockwise to spotlight and clockwise to floodlight.


Mode Switching

With the lamp on General mode, single click the Functional switch to enter Functional mode. With the lamp on Functional mode, single click the General switch to enter General mode.


Burst Mode

In any status, press and hold the General switch for 1.2 seconds to enter Burst mode. The lamp will exit Burst mode after 1 minute or by any other operation.


Overheat Protection

The lamp will accumulate a lot of heat when used on Burst mode for extended periods. To avoid high surface temperature it will automatically downshift to High output level to reduce temperature.


Lockout Function

Lock With the lamp turned off, press and hold any switch or simultaneously press the two switches for 3 seconds, the light will blink four times on Reading and then switch off to indicate locked status. 


Unlock With the lamp locked, simultaneously press the two switches for 3 seconds. The lamp will be unlocked and activated on Reading.


Locked Status

In locked status, any operation will activate 4 blinks on Reading and then switch off to indicate locked status.


Power Supply

The built-in 2000mAh Li-polymer battery is irreplaceable, and Micro USB rechargeable. Note: Recharge a stored headlamp every four months to maintain optimum performance of the battery in case the lamp could be damaged by electrolyte leakage or battery explosion.





Uncover the anti-dust cap and plug the Micro USB side of the charging cable into the charging port of the lamp.



One flashing: lower than 20% 

One constant on, one flashing: 20% - 50% 

Two constant on, one flashing: 50% - 80% 

Three constant on, one flashing: 80% - 90% 

Four constant on: fully charged 


Note: When charging, the headlamp can only be used on Reading output.


Battery Level Indication

When the lamp is turned off, single click the Functional switch, the battery level indicators will display the battery status for 3 seconds.


4 constant-on blue: 80% - 100% 

3 constant-on blue: 60% - 80% 

2 constant-on blue: 40% - 60% 

1 constant-on blue: 20% - 40% 

1 flashes blue: lower than 20%


Headband Assembly

Notice: The headband is factory assembled by default. 


Step 1: Attach the headband to the headlamp. 


Step 2: Adjust the headband by sliding the buckle to required length.


Usage and Maintenance

Disassembling the sealed head can cause damage to the headlamp and will void the warranty. Fenix strongly recommends using the brightness reasonably so as to maintain enough and extended runtime. If the above methods don't work, please contact your authorized distributor.

Q1.  Is the HL40R battery port waterproof?

A. The light is waterproof so long as the battery port cover is in place.


Q2.  What should I do if the HL40R needs repair?

A: 1. 15-day replacement: Fenix will replace identical or equal products with documented manufacturing defects within 15 days of purchase.

2. 2-year free repair: Fenix will repair a light free of charge within 2 years of purchase if problems develop with normal use.

3. Lifetime maintenance: If repair is required after 2 years from the date of purchase, Fenix will charge for parts. The total repair fee is dictated by the cost of the replaced materials.

4. If you need warranty service, fill out the warranty form at https://www.fenixlighting.com/pages/warranty-repairs to start your repair claim.

    No compatible accessories available

Customer Reviews

Based on 22 reviews

My wife and I do a lot of metal detecting on Florida's beaches. I looked at many headlamps before purchasing two of these for us. They are perfect for night detecting. The controls are very easy to find in the dark. In spotlight mode they provide a focused beam that lights up your target area without illuminating the whole beach. Being able to change intensity by simply pressing the general button is a great feature. We find that "Eco" or "Low" provides ample lighting for our needs. The battery life is excellent. We have detected for 8 hours at a time and the battery level indicators have seldom gone below 2 bars. Recharge time is only about an hour with one or two indicators displayed. I would highly recommend this headlamp.

Tom Worley

I've loved nearly everything about this headlamp. Battery life is pretty awesome, it's light and small, recharges relatively quickly and the cost is very competitive. The only downside at all is 2x it's randomly gone into strobe mode and I couldn't get it to stop. Plugging it in to a battery/power source will reset it, it seems. 100% would but it again. Every Fenix product I've had was a favorite.

Nupree Vanatta

It works great. I wish it had a red light as I bought it for backpacking.

Fred Porter

Great reliable, robust light! These headlamps from mil/tac oriented companies are better (more robust with easy to use UI) than headlamps from the outdoor rec companies. They're more solidly constructed. The machined zoom bezel is super smooth with nice damping and has stayed that way after lots of winter ski and desert camping use. It is so convenient to be able to recharge using the ubiquitous micro usb. I use this light for night XC skiing & camping/backpacking.

Daniel Allen

Pros) Very bright fully adjustable light, comfortable, recharging by auxiliary battery. Cons) buttons are easy to turn on accidentally in your pack and drain the battery. I purchased 4 of these headlamps and I have had issues with 2 of them getting stuck in strobe mode with almost full charge. I fixed this by plugging into a charger for 30sec. Afterward had full functionality back. But still very annoying!

Kawika Botelho

Great products

Not enough items available. Only [max] left.
Shopping cart

Your cart is empty.

Add an Order Note (optional)Edit Order Note