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Technical Specifications

Dimensions

Head Dia.
1.5 inches (38.5 mm)
Body Dia.
1.4 inches (35.5 mm)
Length:
4.3 inches (109 mm)
Weight:
5.2 ounces (148 grams)1

Battery Type

  • 3xAA or 3x145002
  • 1.5V alkaline/lithium, 1.2V NiMH, or
    3.7V li-ion
  • Compatible battery diameter/length
    • Diameter: 14-14.6mm
    • Length:50-51.2mm
  • Rechargeable AA (such as Sanyo Eneloop) or premium high-drain lithium AA (such as energizer ultimate lithium L91) batteries are required to obtain the maximum brightness from the LED.
  • Regular alkaline AA is operateable however output brightness will be lowered.
  • Read precaution with multiple AA batteries and li-ion batteries.
  • See other battery type runtime

Operating voltage

  • 2.7V - 13V

What's included

  • GX25A3 flashlight
  • Spare o-rings
  • User Manual
  • Mil-Spec Para-cord Lanyard w/ quick attachment clip
  • Tailcap with rear switch
  • Extra signal connection through the body tube (pre-installed)
  • Heavy duty nylon holsterw/ self-retention device and open-top design

Replaceable items

  • Lens

LED

  • Cool White
    • CREE XM-L2 U4 LED
  • CREE XP-L HI V3 LED
  • Neutral White
    • CREE XM-L2 U2 LED
  • CREE XP-L HI V2 LED

    • Max output

    • LED lumen: 1278
    • ANSI FL-14 lumen: 1048

    Beam Profile


  • XM-L2 U2
    • Center lux: 20,100 lux
    • Center spot angle: 6°
    • Spill light angle: 57°
    • Beam distance: 311 yards / 284 meters

    Lens

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

    LED circuit

    • C3000 ST
      • Synchronous buck w/ efficiency of up to 95%
      • Non-dimming constant current regulation for all output levels without flicking
      • Low battery voltage warning7
      • Energy saving feature5
        (user adjustable to prolong runtime)
      • Very low standby current (uA)

    Reflector

    • Smooth aluminum reflector

    Material

    • HAIII hard anodization aerospace aluminum

    Waterproof

    • IPX-8 standard

    Carrying method

    • Para-cord lanyard
    • Rigid nylon holster w/ retention device

    Battery arrangement

    • Innovative slot load design
    • No battery tray or battery magazine needed
    • Battery arragement design patent pending in United Status, Hong Kong, and China

    Output and Runtime

    • Three brightness levels (Regular mode)
      • Led lumen: 12785-1162/418/11
      • ANSI FL-1 lumen: 10485-953/345/10
      • Runtime: 1.3/3/100+ hours6
    • Two brightness levels (Tactical mode)
      • Led lumen: 12785-1162/256/Strobe
      • ANSI lumen: 10485-953/212/Strobe
      • Runtime: 1.3/5 hours6
    • Seven hidden auxiliary outputs7
      • Strobe/Strobe(Var)/Flash(Hi)/S.O.S.(Fast)/S.O.S./Beacon/Flash(Lo)
    • See other battery type runtime here.

    Operations

    • Basic - Turn on the light by press and release the on/off button switch (<0.4s). To turn off the light, press and release the switch again.
    • For momentary on, press and hold the button switch for immediate output.
    • Twist the head to select between three output levels. You can pre-select the desired output level before turning on the flashlight.
    • Instant Turbo output - at any output level, press and hold the flashlight for 100% output. Release the button to return to previous level.
    • Instant Strobe output - at any output level (or off), double press and hold the on/off button switch for strobe output. Release the button to return to previous level (or off).
    • To access auxiliary levels, starting at head tight position (1st level), loosen to 3rd level and then tighten the head within one second to enter auxiliary setting. Repeat to cycle through all settings. Turn off the light or loosen the head to quit.
    • (Programmable Features) Mode switching: To switch between tactical and regular mode, turn on the flashlight at 1st level, dial to 2nd level and then back to 1st level for ten times within five seconds.
    • (Programmable Features) Energy saving feature: Enabled by default, this feature reduces output current by 45% (or 15% when disabled) after 200 seconds at turbo mode. To toggle this feature, turn on the flashlight at 3rd level, and dial to 2nd level and then back to 3rd level for ten times within five seconds.

    Controls

    Other features

    • User replaceable glass lens
    • Customizable energy saving feature
    • Battery reverse polarity protection
    • Tail stand
    • Extra tail-cap w/ switch

    Warranty

    Battery Safety Precaution

    When using primary (non-rechargeable) batteries (1.5V alkaline/lithium type), ensure they are brand new from the same pack in the same production date. When you are using rechargeable batteries, ensure all batteries belong the same brand/model/condition and are fully charged to similar voltage and capacity.

    When using unmatched batteries, during discharge, some cells can empty out before others when the voltage of the batteries are brought too low. If these already discharged cells are discharged further more, they are subjected to reversed polarity charge. In this case, alkaline batteries may leak, and rechargeable batteries may release gas which may damage the batteries and possibly the flashlight. GX25A3 has built-in low voltage warning which activates at about 6.2V to warn users about the potential of reversal charge which may occur at low voltage. Reduce brightness output or replace batteries when batteries are almost empty. It is very important that you disconnect the batteries (by untwisting the tailcap) or remove the batteries when the flashlight is not in use for a long period of time. Our product warranty does not cover damage due to battery leak or gas leak due to reversed charging (we can still fix it, but replacement parts will be charged).

    All EAGTAC flashlights are designed to use “button-top?battery (battery with protruding positive terminal). For rechargeable li-ion battery, use only EAGTAC li-ion battery, or other protected li-ion battery with compatible 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.     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

    Other battery types runtime

    Below lists the turbo output runtime with different battery types:

    w/ energy saving enabled
    (3xEneloop xx 2.5Ah) 1.6hrs, (3xEnergizer Lithium) 2hrs, (3xEnergizer Max*) 0.5hs+, (3xEAGTAC 14500 750mAh) 1.5hs,

    w/ energy saving disabled
    (3xEneloop xx 2.5Ah) 0.9hr, (3xEnergizer Lithium) 1.1hrs, (3xEnergizer Max*) 0.5hrs+, (3xEAGTAC 14500 750mAh) 0.9hs,

    * When using alkaline batteries, we recommend you to limit the usage of 100% output to prolong runtime, as alkaline batteries are designed for lower current discharge.
    ** Eneloop is a registered register of Sanyo. Energizer, Energizer Lithium, and Energizer Max is a register trademark of Energizer. They are not associated with EAGTAC LLC.
    1. Product weight exclude battery
    2. All batteries must have protruding top button.
    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 using a calibrated integrated sphere three minutes after turning on the flashlight. For O.T.F. lumen, measurement is taken one minute after turning on the flashlight.
    5. Output is measured with energy saving feature disabled. With this feature disabled (enabled), maximum output current will be reduced from 100% to 85% (55%) after 200 seconds at turbo output. This feature is enabled by default.
    6. Turbo output runtime is measured with energy saving feature enabled using low self-discharge AA batteries with 2000mAh capacity.
    7. When the combined voltage for three AA (or li-ion) batteries falls below 2.9V (or 9.6V), the LED will flash once every 30 seconds to remind you that the battery is almost out. Lower the output to extend runtime and replace/recharge batteries.