Technical Specifications


Head Dia.
0.9 inches (22.5 mm)
Body Dia.
0.85 inches (22 mm)
3.4 inches (86 mm)
2.6 ounces (75 grams)1

Battery Type

  • 1 x 18350 (protected and button-top)2
  • high-discharge li-ion type only
  • Compatible battery size (diameter/length)
    • 18-18.8mm/35-36mm
  • Read Warning regarding using and handling of protected li-ion batteries.
  • With included 18650 extension tube, DX3B Mini Pro can use button-top 1x18650 protected li-ion battery that measures 65 to 69.5mm long. Flashlight length with extension tube installed measures 4.6 inches (116mm). The 18650 battery and its protection board must withstand at least 10A current discharge.

Operating voltage

  • 2.7V - 4.2V

What's included

  • DX3B-M Pro flashlight
    • Crenulated stainless steel bezel
    • Harden stainless steel deep pocket
      two-way clip with titanium alloy dark vacuum coated finish
    • Tailstand tailcap with magnet
    • Battery extension tube for single 18650 li-ion battery
    • (US only) UL/PSE certified USB 5V 1A wall charger (100V-240V)
    • (EU only) TUV/CE certified USB 5V 1A wall charger (100V-240V)
    • Rigid nylon holster w/ self-retention device
  • 3.7V 1300mAh 18350 rechargeable protected li-ion battery
  • Spare o-rings
  • User Manual
  • Convenient lanyard
  • Micro USB USB charging cable (3.3feet/1meter) w/ AWG24 copper wire

Carrying method

  • Convenient lanyard


  • IPX-8 standard


  • Smooth aluminum reflector


  • HAIII hard anodization aerospace aluminum


  • Waterwhite glass lens w/ harden treatment
  • Multi-layers low color distortation anti-reflective (A.R.) coating on both side (98% transparency) to prevent reflections and color shadow

Optional accessories

  • 3.7V 18350 li-ion protected battery
  • 5V USB car charger
  • Lens


  • CREE XHP50.2 K2 Cool White LED
  • CREE XHP50.2 J4 Neutral White LED

Max output

  • CREE XHP50.2 K2 Cool White LED
    • LED lumen: 2480
    • ANSI FL-14 lumen: 1830
  • CREE XHP50.2 J4 Neutral White LED
    • LED lumen: 2310
    • ANSI FL-14 lumen: 1700

    Beam Profile

    CREE XHP50.2 K2 Cool White LED

    • Center lux: 6,800 lux
    • Center spot angle: x°
    • Spill light angle: x°
    • Beam distance: 180 yards / 165 meters

    LED circuit

    • W2200 SC - XHP50.2 LED
      • Current regulated output for all brightness levels
      • Low voltage warning at 2.8V (lowers output to the lowest level to extend remaining runtime)
      • Built-in shut down voltage at 2.8V (if voltage reaches 2.8V at the lowest level, the flashlight will turn off)
      • Active thermal management feature (adjustment range 70%-100%)5
      • Synchronous boost controller with ultra low resistance mosfet which offers up to 95% efficiency
      • High switching frequency convertor for more compact circuitry design
      • Non-dimming constant current regulation for all output levels without flicking
      • Very low standby current (negligible)

    Charging circuit

    • L1000 Micro
      • 5V USB input (requires 1A or higher)
      • Dual mosfet design for maximum efficiency
      • 1A MAX charging current
      • Uses standard micro-usb charging plug, supports bi-direction insert
      • Constant current / Constant voltage charging algorithm
      • Small current charging for low voltage battery (less than 2.9V)
      • Extends battery cycle life by charging battery that reads 4.1V or lower
      • Precise voltage detection design +/- 1%
      • No trickle charge
      • Smart charging level report system

      Battery level report

      • A blue LED indicator under the main switch reports the estimated battery remaining capacity
        • Flash once: lower than 10%
        • Flash twice: 30%-50%
        • Flash 3x times: 50%-70%
        • Flash 4x times: higher than 70%

      Charging level report (charging)

      • A blue LED indicator under the main switch reports current charging level
        • Flash once: lower than 50%
        • Flash twice: 50%-75%
        • Flash 3 times: >75%
        • Constant on: 100% (done)

Output and Runtime

  • CREE XHP50.2 K2 Cool White LED
    • Led lumen:
    • ANSI FL-1 lumen:
  • CREE XHP50.2 J4 Neutral White LED
    • Led lumen:
    • ANSI FL-1 lumen:
  • 18350 li-ion Runtime:
  • 0.15-0.25/0.35/1.2/3.5/20 hours6

  • 18650 (w/ extension tube) li-ion Runtime:
  • 0.8-1.2/1.8/5.5/17/100 hours6
  • Hidden auxiliary outputs7
    • Beacon (1.67Hz)


    • Turn on the light at MAX output by pressing and holding the on/off switch button
    • Turn on the light at LOWEST (programmable) output by pressing and release the switch button quickly (within 0.5 second)
    • (UPDATED) To program the LOWEST startup output, switch to the desired output level and WITHIN ONE SECOND switch off and on the flashlight for three times. In rare occasion user may experience the absence of lowest output level from a brand new purchase. If this is case, set the programmable startup level once will initialize the memory setting and will take care of this issue once and for all.
    • To turn off the light anytime, press and release the on/off button switch while it is on.
    • To switch between output levels, with the light turned on, press and hold the on/off switch for longer than 0.5 second to switch to next output. Press and hold the switch will cycle between all levels.
    • To access AUX blinking mode, with the light turned on, cycle through at least two sets of regular brightness level to enter

    • Remove the waterproof silicon cap and insert the charging power plug to charge.
    • Blue side LED indicates the battery is being charged. It reports charging percentage by blinking.


    Other features

    • LED direct soldering on copper for maximum heatsink ability
    • User replaceable glass lens
    • Battery reverse polarity protection
    • Ultra low internal resistance phosphor bronze springs (silver coated)
    • Spring loaded positive and negative terminal
    • Tail stand


    Battery Safety Precaution

    Ensure the battery has current discharge ability of 10A or higher. Always use proven EAGTAC batteries for best performance and reliability.

    DX3B-M Pro and DX3B-M Pro Pro flashlights are designed to use either unprotected flat-top or button-top battery. Use only EAGTAC li-ion battery with compatiable length and diameter. Before using the battery, check and ensure the battery outer wrapping (the isolating plastic film that wraps around the metal housing of the battery) is complete. Broken battery wrapping may lead to short circuit and damage to the flashlight.

    Lithium and Li-ion battery can explode or cause burns if disassembled, shorted, or exposed to high temperature. Do not mix new and used batteries. Do not mix batteries with different brand, capacity, voltage, or install batteries backwards.

    NiMH rechargeable battery may release gas during discharge. If you experience an inflated switch boot or find high pressure being built inside the flashlight, switch off the flashlight immediately. Slowly loosen the tail-cap to reduce the internal pressure and replace all batteries.     Back to top

    Warning for using and handling protected li-ion battery

    The EAGTAC protected 18350 rechargeable li-ion battery is never designed or intended to be used inside different flashlight model (including EAGTAC and other brand) other than DX3B-M Pro and DX3B-M Pro Pro, e-cigarette, vaporizer, or any other electronical device. Doing so can be very dangerous and it is at your own risk

    Never let the battery come into contact with any metal objects as it will short circuiting the battery and may cause fire or explosion. Do not put the battery in the pocket, purse, bag or elsewhere. Always use plastic battery case for transportation or storage and keep away from heat. Always Keep away from children or pets.

    Li-ion battery is very sensitive to charging and discharging characteristics and may cause burn or explosion if misused or mishandled. Never discharge this li-ion battery under 2.7V and never charge it over 4.2V. Always discharge and charge the battery with compatible electrical current. Discard any over-discharged battery or any battery with broken outer wrap.

    Always charge the battery inside EAGTAC intended flashlight model on a fire-proof surface. Do not modify the battery in any form.

    Only use EAGTAC or EAGTAC autherticity verified li-ion battery in this flashlight. EAGTAC and its dealers will not be held responsible or liable for any injury or damage caused by any third party battery, any third party battery charger, or any improper usage or mishandle of its battery and battery charger.     Back to top

    Flashlight Maintenance

    Periodically clean the threads and o-rings with a lint free cloth and apply a thin coating of EAGTAC synthetic grease to the o-rings and threads. After prolonged exposure to moisture, the head and batteries should be removed, inspected, and dried. Do not touch or attempt to clean the reflector, as it will scratch the reflective coating permanently.     Back to top

    1. Includes batteries
    2. Battery with protruded top must used in this flashlight.
    3. Beam output diameter taken at one meter
    4. ANSI FL-1 Lumens is a measurement of light output standardized by American National Standards Institute for use with flashlights. This ANSI Lumen measurement is the total overall light output being emitted from the flashlight. This measurement is generally more accurate as it takes into consideration the loss from reflector/lens/bezel. EAGTAC’s ANSI Lumen output is measured with flashlight cold start-up using a calibrated integrated sphere.
    5. After 30 seconds at maximum output level (100%), the active thermal management feature will be activated and continuously adjusts the maximum output level according to the flashlight internal tempearture. The adjustment output range is between 70%-100%. This feature maintains the flashlight surface temperature to be about 130°F (54 °C) for W1900 (higher surrounding temperaturemay result in higher flashlight temperature). It's normal for high power flashlight to run hot at MAX level. Reduce the output if the user finds the flashlight too warm to hold.
    6. Uses EAGTAC protected 18350 1300mAh li-ion rechargeable battery
    7. Maximum efficiency occurs when input voltage is very close to LED forward voltage.
    8. To charge a deeply discharged protected li-ion battery, the flashlight internal charging circuit will use small current to charge the battery. Usually it takes at least a few minutes for the charging circuit to bring the deeply discharged battery voltage to higher than 3.0V (which is the no-load voltage required to disable the over-charge lock-out on the battery protection circuit). If the protected li-ion battery fails to activate, contact our customer services about your situation and we may find other ways to activate it.