Fenix HL18RW Headlamp (Cool White LED Version)

Max Lumens: 500
Modes: 6
Battery: AAA
(14 customer reviews)


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The Fenix HL18RW is a rechargeable headlamp that features a cool white light. Powered by the included rechargeable 1300mAh Li-polymer battery pack, the Fenix HL18RW headlamp emits a maximum output of 500 lumens and delivers runtime of up to 145 hours. Separate switches control three brightness levels of spotlight and two of floodlight, plus SOS. Easily switch out the battery pack for readily available AAA batteries if needed. IP66 rated rain/splashproof, with a 60° adjustable angle, and extremely light weight, the Fenix HL18RW headlamp is a great choice for hiking and trail running.

For commercial orders and large purchases, contact us at (888) 775-9996 x6, or
WARNING. Be aware of counterfeit Fenix merchandise in the U.S. marketplace.

Max Lumens: 500
Modes: 6


hl18rw headlamp specs chart

HL18RW Size:

Length: 2.3” (57.7mm)
Width: 1.7” (42.3mm)
Height: 1.5” (37mm)

HL18RW Weight:

2.8 oz. (79.5g) including battery, headband & holder

HL18RW Battery:

Included 1300 mAh Li-polymer battery pack, headlamp is also compatible with 3 AAA batteries


ARB-LP-1300 Li-polymer battery pack, headband and charging cable


Limited Lifetime Guarantee from Fenix Lighting USA

Additional Features of the Fenix HL18RW

  • Cree XP-G3 S3 and Everlight 2835 white lights, with lifespan of 50,000 hours.
  • Uses 1300 mAh Li-polymer battery pack, compatible with 3 AAA Ni-MH/Alkaline batteries (charging prohibited).
  • Ultralow standby current 1μA, reduces battery leakage with dry cell inserted.
  • Lockout function.
  • Dual switches for easy and fast operation.
  • Three spotlight and two floodlight output levels, SOS.
  • Micro USB charging port, 5V/1A.
  • Battery level indication.
  • 60° tilt mechanism directs the beam where needed.
  • IP66 rated protection.
  • Made of quality plastics and aluminum, three times injection molding process saves O-ring.



Spotlight switch: for on/off, mode switching , lockout function and output selection on spotlight mode.

Floodlight switch: for on/off, mode switching , lockout function and output selection on floodlight mode.


Press and hold either of the two switches for 0.5 seconds to turn on the lamp. Corresponding low output level is selected by default. Press and hold either of the switch for 0.5 seconds to turn off the lamp.

Mode Switching

With the lamp switched on, single click either of the two switches to reach the corresponding mode.

Output Selection

Spotlight mode: Single click the spotlight switch to cycle through Low→Med→High.

Floodlight mode: Single click the floodlight switch to cycle through Low→High→SOS.

Lockout Function

Lock: With the lamp switched off, press and hold either of the two switches, or simultaneously press the two switches for 3 seconds, the lamp will blink twice to indicate locked status.

Unlock: With the lamp is locked, simultaneously press the two switches for 3 seconds, the lamp will be activated with 3 one-second blinks and activated on Low of floodlight mode.

In locked status, clicking or pressing the switches will activate 3 one-second blinks to indicate locked status.

Intelligent Protection

The lamp will accumulate a lot of heat when used on High output level for extended periods. The lamp will automatically step down by a few lumens to reduce temperature.


Uncover the anti-dust cap and plug the Micro USB side of the charging cable into the charging port of the lamp. The four constant-on indicators shows the lamp is fully charged. The normal charging time is about 2.5 hours with the lamp being switched off.

Note: The headlamp can only be used on Low output when charging.

Battery Level Indication

The indicators will display the the battery status for 3 seconds each time when the lamp is switched on. With the lamp switched off, single click either switch to check the battery status, single click once again the lamp will go out immediately, or without any operation the status will last for 3 seconds. There will be no response with the lamp locked.

  • Four lights on: saturated, 100% – 80%
  • Three lights on: sufficient, 80% – 60%
  • Two lights on: poor, 60% – 40%
  • One light on: critical, 40% – 20%
  • One light flashes: 20% – 0%

Battery Specifications

Type Dimensions Nominal Voltage Usability  
Fenix ARB-LP-1300 43 x 31 x 10.5 mm 3.7 V Recommended √√
Ni-MH Battery AAA 1.2 V Usable       (No charging)
Alkaline Battery AAA 1.5 V Usable       (No charging)
  1. Recharge a stored headlamp every four months to maintain optimal Li-polymer battery performance.
  2. If the lamp will not be used for an extended period, remove the AAA batteries from the lamp in case of damage by electrolyte leakage.

Battery Replacement

  1. Pull battery cover latch that is located between the switches to open the tail cap.
  2. Insert the batteries in accordance with the polarity marks.
  3. Replace the tail cap.

Headband Assembly

Notice: The headband is factory assembled by default.

Step 1: Attach the headband to the headlamp as shown (Pic 1), by first sliding the band down to the bottom of the slots. Then hook the top edge under the top slot.

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 quality rechargeable Ni-MH battery, alkaline battery will shorten the runtime with the lamp switched on high output.


The headlamp is a high-intensity lighting device capable of causing eye damage to the user or others. Avoid shining the lamp directly into anyone’s eyes.

14 reviews for Fenix HL18RW Headlamp (Cool White LED Version)

Based on 14 reviews
  1. MICHAEL M. (verified owner)

    nice and bright and nice and light

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  2. John Haskett (verified owner)

    The battery life is no where close to what is listed on the web site, which is sad as I use fenix lights in my job and the have ton of life.

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  3. Danny (verified owner)

    This is a great little light! I have had a couple of other running lights that have external batteries at the back of your head that do ok, this little light is very lightweight and is plenty bright enough for me as I run before work and can see very well with it.

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  4. Barry Baker (verified owner)

    Long lasting rechargeable lamp. Love the battery life indicator and snug comfortable strap.

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  5. David B. (verified owner)

    Works as expected…we’ll see how it performs after a hundred shods…

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