The Fenix HM53R is a multi-function removable headlamp. This summary is drawn from the manufacturer's official user manual — see the downloadable PDF reference manual on the product page for complete details.
Technical Parameters (ANSI/PLATO FL1)
- Turbo: 1200 lumens, 2h 25min*, 158 meters, 6300 cd
- High: 350 lumens, 5h 34min, 83 meters, 1754 cd
- Med: 130 lumens, 11h 51min, 51 meters, 660 cd
- Low: 30 lumens, 51h 12min, 24 meters, 148 cd
- Eco: 5 lumens, 135 hours, 11 meters, 28 cd
- Red High: 30 lumens, 15 hours, 1.5 meters, 33 cd
- Red Low: 3 lumens, 70 hours, 4 meters, 4 cd
- Red Flash: 3 lumens
Impact Resistance: 2 meters. Submersible: IP68. *The Turbo output is measured in total of runtime including output at reduced levels due to temperature or protection mechanism in the design.
Warning
- Do NOT place this headlamp in the reach of children!
- Do NOT shine this headlamp directly into the eyes of anyone!
- Do NOT place light head near flammable objects, high temperatures can cause objects to overheat and become flammable/ignite!
- Do NOT use this headlamp in inappropriate ways such as holding the unit in your mouth, doing so could cause serious personal injury or death if the headlamp or internal battery fails!
- This headlamp will accumulate a significant amount of heat while operating, resulting in a high temperature of the lamp shell. Pay close attention to avoid burns!
- Remove the battery or unscrew the battery cover to prevent accidental activation when the headlamp is placed in a closed and flammable environment such as pockets and backpacks!
- The LEDs of this headlamp are not replaceable; so the whole lamp will need to be replaced if any one of the LEDs reaches the end of its lifespan.
Product Features
- 1200 lumens maximum output, 158 meters maximum beam distance.
- Uses one Luminus SST-25 cold white LED and two OSRAM-2835 red LEDs, with a lifespan of 50,000 hours each.
- Powered by an included 1600mAh 18350 battery. Also compatible with 16340/CR123A batteries for emergency use.
- Large side switch for simple and glove-friendly operation.
- High-output cold white light and red light meet the lighting needs in various scenarios.
- Headlamp mount, body clip, and magnetic tail-cap provide multiple mounting options.
- Lockout function avoids accidental activation.
- Inner waterproof USB Type-C charging port.
- Full-metal housing with premium type HAIII hard-anodized anti-abrasive finish.
- Size: 2.80" x 1.46" x 1.42" / 71 x 37 x 36 mm.
- Weight: 3.60 oz / 102 g (including battery, headband, and mount).
Operating Instructions
On/Off: with the lamp turned off, press and hold the switch for 0.5 seconds to turn on the lamp. In any mode, press and hold the switch for 0.5 seconds to turn off the lamp.
Mode switching: with the lamp turned off, press and hold the switch for 0.5 seconds to enter White light mode. Double click the switch to enter Red light mode.
Output selection — White light mode: single click the switch to cycle through Eco→Low→Med→High→Turbo.
Output selection — Red light mode: single click the switch to cycle through Low→High→Flash.
Lock/Unlock
Lock: with the lamp turned off, press and hold the switch for 3 seconds; the lamp will blink four times on Eco output of White light and then go out to indicate locked status.
Unlock: with the lamp locked, press and hold the switch for 3 seconds; the lamp will blink four times and then activate on Eco output of White light. In locked status, clicking the switch will activate four blinks in Eco output of White light before turning off.
Intelligent Memory Circuit
The headlamp automatically memorizes the previously used output level excluding Red light mode. When turned on again, the previously used output level will be recalled. When turned on in White light mode, the headlamp will activate in High if it was previously switched off in Turbo.
Battery Specifications
- ARB-L18-1600 (18350, 3.6V): Recommended
- ARB-L18-1100 / ARB-L18-1100P (18350, 3.6V): Usable
- Other Rechargeable Battery, Li-ion (18350 or 16340, 3.6V): Caution
- Non-rechargeable Battery (CR123A, 3.0V): Caution
18350 Li-ion batteries are powerful cells designed for commercial applications and must be treated with caution and handled with care. Using low-quality batteries or mishandling batteries could lead to combustion and jeopardize safety and property; adverse effects are not covered by Fenix warranty. CR123A batteries should be reserved for emergency use only — do not charge while using CR123A batteries. For optimal performance, use a Fenix ARB-L18-1600 battery.
Battery Replacement
Unscrew the battery cover counterclockwise and insert the battery in accordance with the polarity marks, then screw the battery cover back on.
Charging
- Open the anti-dust plug and connect the USB Type-C end of the charging cable to the charging port of the headlamp.
- The indicator will display red while charging and will turn green when fully charged.
- Once charging is completed, unplug the charging cable and close the anti-dust plug.
- With the lamp turned off, the normal charging time of the included Fenix ARB-L18-1600 battery is about 2.5 hours with a 5V/1A or above charging adapter.
The headlamp can be operated while charging. When the voltage level is lower than 3.3V, only the Low output of each mode and the Flash output can be activated. Recharge a stored headlamp every four months. This headlamp does not support fast charging. Only use a certified USB charging adapter that complies with local safety standards.
Battery Level Indication
With the lamp turned off, single click the switch to check the current battery level; the indicator will last for 3 seconds.
- Green light on: saturated 100% - 80%
- Green light flashes: sufficient 80% - 50%
- Red light on: poor 50% - 20%
- Red light flashes: critical 20% - 0%
Intelligent Overheat Protection
The headlamp will accumulate a lot of heat when used at high output levels for extended periods. When the headlamp reaches a temperature of 55°C/131°F or above, it will automatically step down a few lumens to reduce the temperature. When the temperature drops below 55°C/131°F, the lamp will gradually recall the preset output level.
Low-Voltage Warning
When the voltage level drops below the preset level, the headlamp is programmed to downshift to a lower brightness level until the lowest output is reached. When this happens at the lowest output, the battery level indicator blinks red to remind users to recharge or replace the battery.
Headband Assembly
The headband is factory assembled and ready to use right out of the package. Adjust the headband by sliding the buckle to the required length.
Usage and Maintenance
- Disassembling the sealed head can cause damage to the headlamp and will void the warranty.
- Fenix recommends using an excellent quality battery.
- If the headlamp will not be used for an extended period, remove the battery, or the lamp could be damaged by electrolyte leakage.
- 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 O-ring with an approved spare.
- Periodic cleaning of the battery contacts improves the headlamp's performance: A) Poor battery level — recharge or replace. B) Dirty contacts — clean with a cotton swab soaked in rubbing alcohol. If the above methods don't work, contact the distributor.
What's Included
Fenix HM53R headlamp, ARB-L18-1600 battery, USB Type-C charging cable, Spare O-ring, User manual, Warranty card.
