Technical Specifications


Head Dia.
0.7 inches (17.7 mm)
Body Dia.
0.65 inches (17 mm)
3.4 inches (87 mm)
0.85 ounces (24 grams)1

Battery Type

Operating voltage

  • 0.8V - 1.7V6
  • Read here before using 3.7V 14500 li-ion

What's included

  • Stainless steel bezel w/ durable dark titanium coating
  • Spare o-rings
  • Stainless steel pocket clip (Titanium coated)
  • User Manual
  • Rigid Nylon Holster w/ self-retention device and flip
  • Mil-Spec paracord lanyard w/ quick attachment clip

Upgrade/replacement parts

  • Replacement:
    • Lens

Carrying method

  • Stainless steel pocket clip (Titanium coated)
  • Paracord lanyard with stainless steel split ring
  • Rigid nylon holster w/ retention device and flip


  • IPX-8 standard


  • HAIII hard anodization aerospace aluminum


  • Waterwhite glass lens w/ harden treatment
  • Anti-reflective (AR) coating on both side (96% transparency)

Optional accessories

  • EAGTAC low profile button-top 3.7V 14500 li-ion protected battery
  • Rigid nylon holster w/ self-retention device
  • Lens


  • Cool White (LED lumen)
    • CREE XM-L2 U4 (405lm)
    • CREE XP-L HI V3 (353lm)
    • CREE XP-G2 S3 (340lm)
  • Neutral White
    • CREE XP-L HI V2 (330lm)
    • Nichia 219C CRI-92 4000K D240 (275lm)

    Beam Profile

  • XP-L HI V3
    • Center lux: 2,050 lux
    • Beam distance: 99 yards / 91 meters
  • Nichia 219C
    • Center lux: 1,250 lux
    • Beam distance: 77 yards / 71 meters
  • XM-L2 U4
    • Center lux: 1200 lux
    • Center spot angle: 17°
    • Spill light angle: 74°
    • Beam distance: 76 yards / 69 meters


    • Impact resistance waterwhite glass lens
    • Anti-reflective (AR) coating on both side


    • A750RC
      • Efficiency: up to 88%
      • Constant current regulation (non-PWM) for all output levels
      • Uses molded power inductor for higher saturation current and less electromagnetic interference
      • Features solid tantalum input and output capacitors for low ripple current operation
      • Turbo boost technology5


    • Very light textured aluminum reflector


    • HAIII hard anodization aerospace aluminum


    • IPX-8 standard

    Li-ion Support

    • When 14500 li-ion is used, max output will reach up to two times of the original 100% output depending on current battery voltage.
    • All brightness levels remains operational with all output slightly increased to compensate the higher max output.
    • To prevent li-ion battery from over-charge too quickly, when battery voltage is low, the circuit allows the flashlight to lower its output instead of entering boost circuit mode.

Output and Runtime

  • Four brightness levels ("Lower low" enabled)
    • XM-L2 U4
      • Led lumen: 4055/232/16/2
      • ANSI FL-1 lumen: 2865/167/11/2
    • XP-L HI V3
      • Led lumen: 3535/199/15/2
      • ANSI FL-1 lumen: 2605/145/11/2
    • XP-G2 S3
      • Led lumen: 3405/199/14/2
      • ANSI FL-1 lumen: 2405/143/10/2
    • Nichia 219C D240 (CRI92)
      • Led lumen: 2755/149/13/2
      • ANSI FL-1 lumen: 1955/109/9/2
    • With "Lower low" function disabled, lowest output will increase by about three times and the second lowest output will be increased by two times.
  • Runtime ("Lower low" enabled)6
    • Runtime: 1/2.2/35/150+ hours
  • Runtime ("Lower low" disabled)6
    • Runtime: 1/2.2/12/100 hours
  • Five hidden auxiliary outputs7
    • Strobe(Var)/Flash(Hi)/S.O.S.(Fast)/Beacon/Flash(Lo)
  • XP-L HI V2 neutral white LED output is approxiatemly 7% less than the V3 cool white LED.


  • Basic - Press on the switch button until it clicks to turn on the flashlight. Press the switch again until it clicks to switch off the light.
  • Access output groups 1 & 2 - Tight the head to access group 2 output. Loose the head to access group 1 output.
  • Switch between output level - With the flashlight on, slightly press the switch and release (within 1s) to switch to the next output.
  • Toggle "Lower low" output levels - Toggle this setting starting with head loosen, turn on the light, wait for at least one second, and then repeat tight and loose for three times.
  • Toggle mode memory - remebers the last output in group 1. To toggle this setting, with head tighten, turn on the light, wait for at least one second, and repeat loose and tight for three times.


Other features

  • LED Copper MCPCB star board with DTP technology and direct heat path
  • User replaceable glass lens
  • Battery reverse polarity protection
  • Ultra low internal resistance phosphor bronze springs (silver coated)
  • Tail stand


Battery Safety Precaution

Ensure the battery has current discharge ability of 5A or higher. Always use proven EAGTAC batteries for best performance and reliability.

D25A Clicky MKII flashlight is designed to use button-top battery only. Use only EAGTAC protected 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.

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.

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

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. Exclude 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 flashlight will adjust its output slowly until it reaches 60% to ensure longer runtime and lower operation tempearture.
  6. Runtime is based on Sanyo Eneloop Pro 2500mAh NiMH AA.
  7. Maximum efficiency occurs when input voltage is high and close to LED forward voltage.