Fenix HM65R-T Rechargeable Headlamp

$137.00 $104.95

Out of stock

The Fenix HM65R-T Headlamp is a new version of the best selling HM65R Headlamp that features slightly improved performance with its Luminus SST40 LEDs and a new patented headband fit system. Independently controlled spotlight and a floodlight produce a combined maximum 1500 lumens of neutral and white light. Powered by the included 3400mAh battery, this headlamp is USB-C rechargeable and includes a battery level indicator. It is made of a magnesium alloy for better strength, impact resistant to 2 meters (6.6ft), and less weight. Perfect for all activities where the brightest hands-free lighting is required.

SKU: HM65RTBKN/ABarcode: 6942870307718N/A
Max Lumens: 1500
Modes: 6
Battery: 18650 or CR123A

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Max Lumens: 1500
Max Beam Distance: 558 Feet (170 meters)
Max Runtime: 300 hours
Lighting Modes: 3 brightness levels on spotlight, and 3 brightness levels on floodlight
Bulb Type: Uses Luminus SST40 white and Cree XP-G2 S3 neutral white LEDs
Size: Length: 3.15” (80mm) Width: 1.85” (47mm) Height: 1.54” (39mm)
Weight: 3.21 oz. (91g) excluding battery
Battery: One included 18650 rechargeable Li-ion battery or two CR123A batteries
Included: ARB-L18-3400 rechargeable li-ion battery, USB Type-C charging cable, spare O-ring
Warranty: Limited Lifetime Guarantee from Fenix Lighting USA
Fenix HM65R-T Rechargeable Headlamp specs chart

More Information

  • Uses Luminus SST40 white and Cree XP-G2 S3 neutral white LEDs, with a lifespan of 50,000 hours
  • Constant current circuit ensures longer runtimes
  • Reverse polarity protection to protect from improper battery insertion
  • Dual top switched operate an independent spotlight and floodlight
  • USB Type-C charging port for fast charging
  • Patented rotary press/pull clasp, headband can be adjusted with a single hand
  • Made from quality aluminum, magnesium and PC—lightweight and durable


Fenix HM65R-T Rechargeable Headlamp runtime chart


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

Floodlight: 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/off the lamp. Low output level is set by default. 


Mode switching 

Press and hold either of the two switches for 0.5 seconds to reach the corresponding mode. The two modes are separately controlled. 


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→Med→High. 


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 4 times on Low of floodlight mode to indicate locked status. 

Unlock: With the lamp is locked, simultaneously press the two switches for 3 seconds, the lamp will be activated with 4 one-second blinks and activates on Low of floodlight mode. In locked status, clicking or pressing the switches will activate 4 one-second blinks on Low of floodlight mode to indicate locked status. 


Battery Specifications 

TypeDimensionsNominal voltageUsability 
Fenix ARB-L18 Series186503.6 V /3.7 VRecommended√√
Non-rechargeable Battery (Li-ion)CR123A3VUsable
Rechargeable Battery (Li-ion)186503.6 V /3.7 VCaution*
Rechargeable Battery (Li-ion)163403.6 V /3.7 VBanned×

*18650 Li-ion batteries are powerful cells designed for commercial applications and must be treated with caution and handled with care. Only use quality batteries with circuit protection will reduce the potential for combustion or explosion; but cell damage or short circuiting are potential risks the user assumes. 


Quality Li-ion battery with protective circuit will reduce risks. Fenix ARB-L18 Series battery is recommended. 


Battery Replacement 

Unscrew the battery cover anticlockwise to insert the battery with the anode side (+) towards the inner side, then screw the battery cover back on. 



  1. Uncover the anti-dust cap and plug the USB Type-C side of the charging cable into the charging port of the
  2. The normal charging time of the Fenix ARB-L18-3500 rechargeable Li-ion battery is about 3 hours with the lamp being switched off. When charging, Low output of spotlight or floodlight mode can be separately selected. The headlamp will not automatically power on after full charging.
  3. In charging process, one indicator flashes: below 20%, one constant-on and one flashes: 20% - 50%, two constant-on and one flashes: 50% - 80%, three constant-on and one flashes: 80% - 95%, four constant-on: charging complete.
  4. Replace the anti-dust cap to ensure waterproof and dustproof ability.

Battery Level Indication 

With the lamp is switched off, single click either of the two switches to check the battery status, the indicator(s) will last for 3 seconds. There will be no response with the lamp locked. 

  • Four lights on: 100% - 80%
  • Three lights on: 80% - 60%
  • Two lights on: 60% - 40%
  • One light on: 40% - 20%
  • One light flashes: 20% - 0%

Note: This only works with Fenix ARB-L18 Series 18650 rechargeable Li-ion battery. 


Intelligent Overheat Protection 

The lamp will accumulate a lot of heat when used on high, med and low output levels for extended periods. When the lamp reaches a temperature of 65°C or above, the lamp will automatically step down a few lumens to reduce the temperature. When the temperature drops below 65°C, it will then allow the user for the reselection of the modes. 


Low-voltage Warning 

When the voltage level drops below the preset level, the headlamp is programmed to downshift to a lower brightness level until Low output is reached. When this happens in Low output mode, one of the battery level indicators blinks to remind you to timely recharge or replace the battery. 


Note: This only works with Fenix ARB-L18 Series 18650 rechargeable Li-ion battery. 


Headband Assembly 

Notice: The headband is factory assembled by default. 


Headband Adjustment 

Pull the rotary clasp up to unlock, and pull on the attached end of the headband to loosen. Press the rotary clasp back into its down position and rotate it clockwise to tighten the headband. 


Usage and Maintenance 

  • Disassembling the sealed head can cause damage to the lamp and will void the warranty.
  • Fenix recommends using an excellent quality Fenix 18650 battery.
  • If the lamp will not be used for an extended period, remove the battery, or the lamp could be damaged by electrolyte leakage.
  • Lock the lamp or take out the battery to prevent accidental activation during storage or transportation.
  • Long-term use can result in O-ring wear. To maintain a proper water seal, replace the ring with an approved spare.
  • Periodic cleaning of the battery contacts improves the lamp's performance as dirty contacts may cause the lamp to flicker, shine intermittently or even fail to illuminate for the following reasons:

A: The battery needs replacing. 

Solution: Replace battery (Ensure battery is inserted according to the manufacturer’s specifications). 

B: The threads, PCB board contact or other contacts are dirty. 

Solution: Clean the contact points with a cotton swab soaked in rubbing alcohol. If the above methods don't work, please contact the distributor. 



  • 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.
  • This headlamp will accumulate a lot of heat when used for extended periods, resulting in high temperature of the headlamp Pay attention to safe use to avoid scalding.
  • All information provided in this manual is subject to change without prior notice.

Product Videos

Customer Reviews

Based on 109 reviews
So far - so great

I haven't put this thing through the wringer yet, but in using it around the house and yard doing chores it has been great. The headband and adjustability are great, and the brightness is insane. I'm switching from a Petzel, that while a good lamp, just wasn't bright enough for nighttime nordic skiing, and with the Fenix that will definitely not be an issue.

Ben Clark
Great light

Best headlight I have owned. Easy to use and great settings

David William

It feels great and does all I need with two separate beam choices. Sweet. I use it for general carpentry and electrical work. Loving it. Much thanks!

Steven Muschek
Great light, but not prefect fit.

Light was great all around but getting off the battery cap was slightly difficult. This won't be the case for all. The strap wasn't holding in its place all the time unless you crank it down which made it uncomfortable after long periods. I guess it might depend on head size and shape. I wish I could have returned the item for a PD35 rechargeable since it works great. Missed the 15 day policy.

Best headlamp for running all night

Light, powerfull, rugged and most confortable band I ever had. 400 lumens for 12 hours is impressive. For some runner, a red light would be nice but it is not my case. So far I cannot say a single bad thing about this headlamp.

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Fenix HM65R-T Rechargeable Headlamp

$137.00 $104.95