A black Fenix HM75R rechargeable industrial headlamp with an orange adjustment strap and white and red light sources, showcasing the front view with the brand name visible.
Fenix HM75R rechargeable headlamp worn by a hiker in heavy snow
Fenix HM75R rechargeable headlamp on concrete
Fenix HM75R rechargeable headlamp used to light up a quarry at night
Fenix HM75R rechargeable headlamp with graphics displaying its lightweight magnesium body
A GIF showing the different power sources of the Fenix HM75R rechargeable headlamp
Two photos showing the Fenix HM75R rechargeable headlamp used with and without its extension cable
Fenix HM75R rechargeable headlamp with graphics showing its runtime
A GIF showing the operation of the Fenix HM75R rechargeable headlamp's rotary switch
A GIF showing the different outputs of the Fenix HM75R rechargeable headlamp
Several photos showing the spot and flood beam patterns of the Fenix HM75R rechargeable headlamp
A GIF showing the Fenix HM75R rechargeable headlamp's battery pack detached from the mount to use as a power bank
A GIF showing a lineman getting close to a surface, triggering the proximity downshift sensor of the Fenix HM75R rechargeable headlamp
A GIF showing the Fenix HM75R rechargeable headlamp powerbank used to recharge a cell phone
Fenix HM75R rechargeable headlamp with graphics discussing its tough metal body
A GIF showing the locking charge cable of the Fenix HM75R rechargeable headlamp
Fenix HM75R rechargeable headlamp dropped onto concrete
Fenix HM75R rechargeable headlamp technical parameters chart
Fenix HM75R rechargeable headlamp in package with included accessories
Fenix HM75R rechargeable headlamp as viewed form the front
Fenix HM75R rechargeable headlamp as viewed from a top right angle
The battery pack of the Fenix HM75R rechargeable headlamp
Fenix HM75R rechargeable headlamp as viewed from the front

Fenix HM75R Rechargeable Industrial Headlamp - 1600 Lumens

Regular price$169.95
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  • Backed by the Fenix Limited Lifetime Warranty

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The HM75R headlamp is tailored for adventurers and professionals alike. Crafted from magnesium, this headlamp is 30% lighter than its aluminum counterparts. It comes equipped with dual power sources: a primary battery for the headlamp and an extendable powerbank that can be detached and used on the go, complete with a convenient belt clip. The HM75R features a versatile lighting system with a spotlight and floodlight white output, alongside a red light output for night vision preservation. Navigation through these modes is quick and easy with a rotary selection switch, and adjusting brightness levels is a breeze with a simple button press.

Boasting 1600 lumens of maximum output and reaching distances up to 732 feet and up to 18.9 hours of maximum runtime, the HM75R will be there to meet your needs. Charging is swift and efficient with USB-C fast charging, fully charging the headlamp in just 4 hours and the extender in 2.5 hours, while the extender also supports 18W fast discharge for your devices. It also features an intelligent brightness downshift technology that automatically adjusts the light intensity to prevent blinding when approaching objects closely. 

Designed to withstand the toughest conditions, the HM75R’s full metal body is both impact and corrosion-resistant. The extender cable securely locks into the headlamp, ensuring a reliable connection. Rated IP68 for waterproofing and tested for 2-meter drops, this headlamp is ready for any challenge. Additionally, the flashing red output enhances visibility and safety. The package includes 2 batteries - the ARB-L18-3400 battery goes into the headlamp and the ARB-L21-5000v2 battery goes into the included power bank. Whether for professional use, outdoor adventures, or emergencies, the HM75R headlamp is your dependable companion, lighting the way forward.

Outputs

  • NOTE: The specifications differ slightly when using the extender. Those listed below are maximums. See runtime chart for details.
  • Spotlight
  • Turbo: Up to 1600 Lumens, 9 hours, 732 feet
  • High: 800 Lumens, up to 10.5 hours, 518 feet
  • Med: 350 Lumens, up to 18.33 hours, 331 feet
  • Low: 50 Lumens, up to 88.67 hours, 128 feet
  • Floodlight
  • Turbo: Up to 1000 Lumens, 13 hours, 197 feet
  • High: 400 Lumens, up to 14 hours, 141 feet
  • Med: 150 Lumens, up to 18 hours, 82 feet
  • Low: 5 Lumens, up to 234 hours, 16 feet
  • Red Light
  • High: 120 Lumens, up to 19.67 hours, 53 feet
  • Med: 30 Lumens, up to 46.33 hours, 30 feet
  • Low: 5 Lumens, up to 265 hours, 13 feet
  • Flashing: 5 Lumens, up to 530 hours, 13 feet

Details

  • Lightweight magnesium body, 30% lighter than aluminum
  • Two power sources - main battery and extender
  • Spotlight and floodlight white outputs
  • Red light output with flashing mode
  • Rotary selection switch to select output mode
  • Simple single button press to change brightness
  • Extender is detachable to be used as a standalone powerbank and features a belt clip for easy carry
  • Intelligent brightness downshift reduces output when you get close to an object
  • USB fast charging charges the headlamp in 4 hours and the extender in 2.5
  • Extender features 18W fast discharge
  • Corrosion resistant
  • Impact resistance proven in a 2 meter drop test
  • IP68 rated waterproofing: fully submersible
  • 2 batteries included!

Batteries

  • Included: One Fenix ARB-L18-3400 rechargeable 3400mAh 18650 battery and one Fenix ARB-L21-5000 V2 rechargeable 5000mAh 21700 battery.
  • Compatible: The headlamp uses one 18650 battery. The extender uses one 21700 battery.

Size

  • Length: 3.59 inches
  • Width: 1.61 inches
  • Height: 2.11 inches
  • Weight: 11.32 ounces including extender, batteries, and headband
  • Fenix HM75R Headlamp
  • Fenix ARB-L18-3400 battery
  • Fenix ARB-L21-5000 V2 battery
  • 1 meter extension cable
  • Spare o-ring (Qty 2)
  • User manual
  • Warranty card

What material is the lens of the HM75R made of?

High-quality PC-1250Z material.

What kinds of LEDs are used in HM75R?

A Luminus SST40 cold white LED, two Luminus SST20 neutral white LEDs, and an
OSRAM GR QSSPA1.23 red light LED; with a lifespan of 50,000 hours each.

What is the color temperature of HM75R?

Spotlight mode: 6500K. Floodlight mode: 4000K.

What is the operating voltage of HM75R and power extender?

HM75R headlamp : 2.85 V - 7.4 V.
Power extender: 3.2 V - 4.2 V.

Why is it not possible to select higher modes when the HM75R is charged by the power extender?

When using the power extender to charge the HM75R headlamp, the headlamp is charged indirectly, and the power extender is not capable of driving large currents. As a result, the actual brightness of each output depends on the charging voltage when the HM75R is charged by the power extender

Why does the power extender still discharge when the HM75R is fully charged?

With the light load detection function switched on, the power extender will automatically stop discharging when the headlamp is fully charged. Re-insert the Type-C plug and click the Switch B or re-insert the battery to restart discharging.

Why does the HM75R downshift to a lower mode after being usedvfor a while and the higher mode cannot be selected?

There are two reasons:
1. Intelligent Overheat Protection
The lamp will accumulate a lot of heat when used at relatively high output levels for extended periods. When the lamp reaches a temperature of 60°C or above, the lamp will automatically step down a few lumens to reduce the temperature.
2. 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.

How to prevent accidentally activate the HM75R?

Rotate the rotary switch to the Power symbol.

What kind of batteries can be used in HM75R and power extender?

For the HM75R headlamp, the Fenix ARB-L18-3400 battery is recommended. For the power extender, the ARB-L21-5000 V2.0 battery is recommended. Other Li-ion batteries are not recommended. As High output fails to headlamp up due to current
and voltage limitation, an unmatched battery may cause the headlamp to fail to work normally.

Fenix HM75R rechargeable headlamp technical parameters chart
Fenix HM75R