Fenix HM51R Ruby rechargeable headlamp

Fenix HM51R Ruby rechargeable headlamp

The Fenix HM51R Ruby is a powerful rechargeable headlamp that offers a luminous flux of up to 500 lumens (ANSI) of neutral white light (4500 K) with an afterglow of up to 85 meters and is also equipped with red LEDs. It is powered by one rechargeable battery type RCR123A, which is recharged directly in the lamp via the micro-USB connector, alternatively it is possible to use a disposable lithium battery CR123A for powering. In addition, there is an indicator LED in the control button, thanks to which you will always know when to recharge the battery. The end of the lamp is magnetic, so it can be easily attached to anything iron. The HM51R has seven different lighting modes that allow you to choose between high performance and long endurance ( up to 110 hours ). The lamp is powered by a digitally regulated constant current to guarantee a constant light output even when the voltage in the batteries is reduced (while they are gradually discharged).
The all-metal construction ensures high resistance, optimal cooling, and at the same time it is fully waterproof according to the IP68 standard up to a depth of 2 meters under water. The practicality of the headlamp increases the possibility to remove the light from the head holder and use it also as a small pocket flashlight. The Fenix HM51R headlamp is an ideal companion for a variety of sports activities, trips to nature, home and work.
The Fenix HM51R headlamp is a limited edition that is based on the Fenix HM50R headlamp and offers a number of improvements. For example, thanks to the cleverly designed control, the headlamp can be turned on both directly into white light and directly into red light. If you are interested in all the differences between the two models, then read the article Comparison of Fenix HM50R and Fenix HM51R Ruby headlamps.
All lamp parameters (luminous flux, battery operation time, waterproofing, afterglow and impact resistance) are measured in accordance with the ANSI/NEMA FL 1-2009 standard.

Fenix HM51R Ruby headlamp parameters

• A premium powerful Cree XP-G3 LED with a neutral light shade (4500 K) and a lifespan of 50,000 hours and two red Everlight LEDs are used.
• Seven lighting modes: 500 lumens (1.3 hours) -> 150 lumens (2.8 hours) -> 30 lumens (13.3 hours) -> 3 lumens ( 110 hours ) -> red light 4 lumens (30 hours) -> red flashing 4 lumens -> SOS
• Measured with a Fenix RCR123A Li-ion battery with a capacity of 700 mAh (included in the package).
• Power supply: one Li-ion battery RCR123 / 16340 or one disposable CR123A battery.
• Charging micro-USB 5V / 1A.
• Continuous light cone with a afterglow of up to 85 meters (1800 cd)
• Dimensions: 70mm length x 33mm width x 28mm height (including headlamp holder).
• Weight: 77 grams (including strap and battery).
• Battery capacity indication and low voltage warning.
• Digital constant power regulation.
• Magnetic end, the headlamp can be attached to anything iron.
• Protection against reverse battery insertion (reverse polarity).
• Comfortable strap with reflective elements.
• Simple control with one switch.
• Body made of high-strength aircraft aluminum alloy.
• Durable hard-to-scratch surface - Type III hard anodized.
• Quality TIR optics with high light transmission.
• The package includes 1x HM51R headlamp, 1x ARB-L16-700 battery, 1x spare o-ring, 1x spare rubber cover of the charging connector, 1x USB charging cable, 1x manual, 1x warranty card.
• A Fenix APB-20 case and a set of black AFH-02 straps without reflective elements can be purchased for the headlamp - they are suitable for example for the army, police or hunters.
• After removing the headlamp from the holder, it can be attached to the handlebars with Lockblock and Bikeblock holders.
• It is also possible to buy a USB adapter for the mains and a USB adapter for the car or a spare battery RCR123A with USB.

The use

From the factory, there may be a black insulating cap inside the lamp on the battery. Before first use , remove it from the battery.
When the headlamp is turned off, it will turn on to the last used white light mode by holding the button for 0.5 seconds. When the headlamp is turned off, press the button twice quickly to turn on the last used red light mode. The headlamp is turned off by holding down the button for 0.5 seconds.
Switching power modes: If the headlamp has a white light on, short presses of the button can cyclically switch the power modes in the order of 3 - 30 - 150 - 500 lumens. If the headlamp has a red light on, it is possible to cycle through the lighting modes in the order red - red flashing - red SOS by briefly pressing the button. The lamp has a memory and will always turn on in the last set mode (applies to white and red light).
Battery charge status indication: If the headlamp is turned off, one press of the button turns on the battery charge status indication for 3 seconds, which is shown by the colored backlight of the button:
Constant Green: 100% - 85%
Green Flashing: 85% - 50%
Constant Red: 50% - 25%
Red flashing: 25% and less (recharge the headlamp as soon as possible)
The indication works correctly only with rechargeable RCR123A / 16340 batteries.
Charging:
1. Turn off the headlamp. Plug the USB cable into any USB source. Unfold the sealing cap of the charging connector and plug the micro-USB connector of the charging cable into the headlamp.
2. During charging, the LED indicator in the button lights up red, after reaching full charge it lights up green. A fully discharged Fenix ARB-L16-700 battery is charged in approximately 1.5 hours.
3. After charging, disconnect the cable and carefully seal the charging connector with a rubber cap to prevent dust and water from entering.
4. In case of long-term storage, charge the headlamp before using it again. The used accumulator does not have a memory effect, so it can be recharged even if it is not completely discharged.
5. The headlamp can also be used while charging, but only the lowest mode is available.
Low battery warning: If the battery voltage drops below the set level, the headlamp automatically switches to lower power modes. If the headlamp is already switched to the lowest power mode and the battery is critically discharged, the indicator in the button lights up red and flashes every 3 seconds. However, the headlamp will continue to shine until the battery is completely discharged.
Note: The low battery warning is only calibrated to the voltage of rechargeable Li-ion batteries.

Warning

• Do not disassemble the sealed part in the lamp head yourself, this will void the warranty.
• If using a disposable CR123A battery, do not try to charge it in the lamp.
• If the protective rubber rings appear damaged after a long period of use, replace them. The rings must also be lubricated to prevent rubber erosion. By following these rules, the lamp will be properly protected against water.
• If the light flickers, does not switch to higher power modes, or does not light up, it may be for one of the following reasons:
  • The battery is almost empty - charge it or replace it.
  • The contacts inside the lamp are dirty - clean them with a cotton swab dipped in alcohol.
  • The back part of the lamp is loose - tighten it.

Weight: 77g
Number of modes: 7
Afterlight: 85m
Output: 500lm
Max. durability: 110 hours
Power supply: 1x CR123A
Power supply: 1x RCR123A
Power supply: USB charging
Light source: Cree XP-G3
Waterproof: IP68 (immersion 2 m)
Color: black