The Fenix HM65R-DT rechargeable headlamp is specifically designed for trail running. This new Fenix headlamp is made of ultra-lightweight magenesium material. The two built-in LEDs give the HM65R-DT a max output of 1500 lumens. With a brand new body designed from magnesium, the Fenix HM65R-DT headlamp has IP68-rated protection, and 2 meters of impact resistance. The included perforated headband provides comfort and adjustability for a perfect fit in every situation. It id recommended to use the Fenix HM65R-DT for trail running trips where you need to light your path swiftly and hands-free.
3.15'' × 1.85'' × 1.54'' / 80 × 47 × 39 mm
3.21 oz / 91 g (excluding battery)
Battery Type

Included one rechargeable 3400mAh Li-ion battery/2 x CR123A battery

Product Features

  • 1300 lumens white light and 400 lumens warm white light. The maximum output of the combined light sources can reach up to 1500 lumens.
  • Uses Luminus SST40 white and SST20 warm white LEDs, with a lifespan of 50,000 hours.
  • Included a 3400mAh battery.
  • Constant current circuit ensures longer runtime.
  • Reverse polarity protection, to protect from improper battery insertion.
  • Dual top switches for easy and fast operation.
  • USB Type-C charging port fast charging.
  • Single-handed operation with the new SPORT Headband Fit System.
  • Lightweight magnesium alloy material made.
  • Size: 3.15'' × 1.85'' × 1.54'' / 80 × 47 × 39 mm.
  • Weight: 3.21 oz / 91 g (excluding battery).



FAQs About Fenix HM65R-DT Flashlight

    Q1. What is the product positioning of HM65R-DT? What are the key features of HM65R-DT?
    A: Fenix HM65R-DT is an ultralightweight magnesium trail running headlamp. Its key features include:
    1.Dual spotlights of warm white light and white light.
    2.Lightweight magnesium material.
    3.SPORT Headband Fit System for fast and single-handed operation.
    4.Widened headband design - comfortable and stable.

    Q2. What kind of LEDs are used in HM65R-DT? Does Fenix offer to replace LED?
    A: A Luminus SST40 white light LED and a SST20 warm white light LED; with a lifespan of 50,000 hours.

    Fenix does not provide LED replacement services for the time being, and users are not recommended to replace the LEDs independently, which may affect product performance and cause product damage.

    Q3. What is the color temperature of HM65R-DT?
    A: The color temperature of white light is around 6500K, the color temperature of warm white light is around 3000K.

    Q4. What is the operating voltage of HM65R-DT?
    A: The operating voltage is 3.6 V. The operating current is 4.2 A. The rated wattage is 15 W.

    Q5. Is HM65R-DT rechargeable? How long is the charging time?
    A: HM65R-DT is rechargeable. Uncover the anti-dust cap and plug the USB Type-C side of the charging cable into the charging port of the lamp to charge the lamp. The charging time is about 3 hours from depleted to fully charged. When charging is complete, replace the anti-dust cap to ensure waterproof and dustproof ability.

    Q6. How to prevent accidentally activate the HM65R-DT?
    A: Lock: when the lamp is switched off, press and hold either of the switches for 3 seconds or simultaneously press both of the switches for 3 seconds, the warm white light will blink 4 times to indicate the locked status.
    Unlock: when the lamp is locked, press and hold both of the switches for 3 seconds, the warm white light will blink 4 times to indicate unlocked status and activate on Low of warm white light mode.
    In locked status, clicking or pressing the switches will activate 4 blinks on Low of warm white light mode to indicate the locked status.

    Q7. Why does the HM65R-DT downshift to a lower mode after being used for a while and the higher mode cannot be selected?
    A: 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 65°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.

    Q8. Why does the HM65R-DT happen to flicker?
    A: The reasons that may cause the lamp to flicker, shine intermittently or even fail to illuminate:
    A: Poor battery level.
    Solution: Recharge or replace the battery (Ensure battery is inserted according to the manufacturer’s specifications).
    B: The contact point or contact of the battery or headlamp is 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.

    Q9. What kind of battery can be used in HM65R-DT?
    A: Fenix ARB-L18-3400 battery is recommended. Compatible with 2 x CR123A batteries. Other Li-ion batteries are not recommended. As High output fail to headlamp up due to current and voltage limitation, an unmatched battery may cause the headlamp to fail to work normally.

    Q10. What are the optional accessories for HM65R-DT?
    A: The included headband.

    Q11. What should I do when the HM65R-DT needs repair?
    A: 1. 15-day replacement: Fenix will replace identical or equal products with documented manufacturing defects within 15 days of purchase.
    2. 5-year free repair: Fenix will repair a light free of charge within 5 years (rechargeable battery: 1 year) of purchase if problems develop with normal use.
    3. Lifetime maintenance: If repair is required after 5 years from the date of purchase, Fenix will charge for parts. The total repair fee is dictated by the cost of the replaced materials.
    4. Warranty certificate: Please keep the warranty card in contacting the authorized distributors for after-sale maintenance, Fenix will provide service support to the distributors.