Technical Specifications


Head Dia.
1.3 inches (33 mm)
Body Dia.
1 inches (25.4 mm)
5.7 inches (146 mm)1
4.6 ounces (130 grams)

Battery Type

  • 1x18650 or 2x18650 (optional)2
  • Compatible battery (diameter/length)
    • 123A: (16-16.8mm/34-34.5mm)
    • 18650: (18-18.8mm/65-68.8mm)
  • Do not use CR123A batteries with XHP35 LEDs as it may overheat in MAX output
  • Protection PCB trip current: 10A or higher
  • Read precaution with li-ion batteries.

Operating voltage

  • 2.7V - 8.4V

What's included

  • T25C2 Pro flashlight
    • Crenulated stainless steel bezel
    • Add-on diffuser filter with flip-cover feature
    • Rigid nylon holster w/ self-retention device
    • Cigar grip cover ring
  • Spare o-rings
  • User Manual
  • Mil-Spec Para-cord Lanyard w/ quick attachment clip
  • Removeable darken pocket clip made of spring steel w/ harden treatment

Carrying method

  • Para-cord lanyard with quick attachment clip
  • Heavy duty nylon holster


  • IPX-8 standard

Replaceable items

  • Lens


  • Smooth aluminum reflector


  • HAIII hard anodization aerospace aluminum

LED drop-in modules regular beam

  • CREE XHP35 HD E4 Cool White LED Dropin
  • CREE XHP35 HD Neutral White LED Dropin
  • CREE XHP35 HI E2 Cool White LED Dropin
  • CREE XHP35 HI Neutral White LED Dropin
  • UV 365nm dropin (Ledengin LZ1-00UV00, 1360mW radiant flux, 2levels)
  • UV 395nm dropin (Ledengin LZ1-00UA00, 1400mW radiant flux, 2levels)
  • IR 850nm dropin (Osram 640mW radiant flux, 2levels)
  • IR 940nm dropin (Osram 600mW radiant flux, 2levels)
  • Red color LED dropin (CREE XP-E2 Color, 2levels, 9,000 lux, 208yards/190meters)
  • Green color LED dropin (CREE XP-E2 Color, 2levels, 11,500 lux, 234yards/214meters)
  • Blue color LED dropin (CREE XP-E Color, 2levels)
  • Custom high power 395nm UV LED (5Watts 2000mW)
  • Custom high power 365nm UV LED (5Watts 1400mW)
  • CREE XP-L HI V3 Cool White LED Dropin
  • CREE XP-L HI Neutral White LED Dropin

LED drop-in modules floody beam

  • Multi-color (White/Red/Royal Blue/Green) dropin (CREE XM-L Color, D25LC2 color driver)
  • Triple high CRI-92 neutral white LED dropin
    1000 LED lumen
    (3*Nichia 219B LED SW45,T25C2 driver)
  • Triple cool white LED dropin
    1317 LED lumen
    (3*CREE XP-G2 S2 LED, T25C2 driver)
  • Triple Red Color LED dropin (3*CREE XP-E RED LED, T25C2 driver, 1500 lux, 85yards/77meters)
  • Triple Green Color LED dropin (3*CREE XP-E Green LED, T25C2 driver, 3000 lux, 120yards/110meters)
  • Triple Blue Color LED dropin (3*CREE XP-E Blue LED, T25C2 driver)


  • CREE XHP35 HD E4 Cool White LED
  • CREE XHP35 HI E2 Cool White LED
  • CREE XHP35 HI Neutral White LED

Max output

  • CREE XHP35 HD E4 Cool White LED
    • LED lumen: 2100
    • ANSI FL-14 lumen: 1700
  • CREE XHP35 HI E2 Cool White LED
    • LED lumen: 1950
    • ANSI FL-14 lumen: 1580

Beam Profile

CREE XHP35 HD E4 Cool White LED

  • Center lux: 23,100 lux
  • Center spot angle: x°
  • Spill light angle: x°
  • Beam distance: 331 yards / 304 meters
CREE XHP35 HI E2 Cool White LED

  • Center lux: 40,500 lux
  • Center spot angle: x°
  • Spill light angle: x°
  • Beam distance: 439 yards / 402 meters


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

LED circuit

  • W2000 Tac
    • Synchronous boost converter with ultra low resistance power mosfet which offers up to 96% efficiency and high voltage LED output
    • Uses six large capacity MLCC for input and output decouple
    • Four layers FR-4 PCB for better heat transfer, lower EMC, and higher output power
    • Uses molded power inductor for higher saturation current and less electromagnetic interference
    • Current regulated output (non-PWM) for all brightness levels without flicking
    • Low voltage warning at 3V (lowers MAX output to the second level to extend remaining runtime)
    • Low voltage warning at 2.8V (lowers any output to the lowest level to extend remaining runtime)
    • Built-in shut down voltage at 2.7V (if voltage reaches 2.7V at the lowest level, the flashlight will turn off)
    • Active thermal management feature (adjustment range 60%-100%)5
    • No standby current

Output and Runtime

  • Three brightness levels
  • Programmable Medium and Low levels
    • XHP35 HD Led lumen:
      • Max: 2100-14105
      • Medium: 1000-700-400-Strobe
      • Low: 100-50-18-Strobe
    • XHP35 HD ANSI FL-1 lumen:
      • Max: 1700-11505
      • Medium: 830-580-335-Strobe
      • Low: 85-42-15-Strobe
    • XHP35 HI Led lumen:
      • Max: 1950-13105
      • Medium: 950-650-370-Strobe
      • Low: 89-45-16-Strobe
    • XHP35 HI ANSI FL-1 lumen:
      • Max: 1580-10755
      • Medium: 790-540-310-Strobe
      • Low: 75-38-13-Strobe
  • EAGTAC 3500mAh Runtime:
    • Max: 0.8-1.3 hrs
    • Medium: 2-3-6 hrs
    • Low: 29-55-170 hrs
  • EAGTAC 2600mAh Runtime:
    • Max: 0.5-0.9 hrs
    • Medium: 1.5-2.3-4.6 hrs
    • Low: 21-41-125 hrs
  • Four hidden auxiliary outputs
    • Disorienting strobe/Flash/S.O.S./Beacon


  • Tactical forward clicky switch
  • Basic operation
    • Turn on the light by pressing the tailcap button until it clicks.
    • Twist the head to select between three output levels.
    • Pre-selected output level before turning on the light.
    • Cycle through auxiliary modes: tight the head (1st level), and loose the head (3rd level) and then tight the head within one second to enter auxiliary setting. Repeat to cycle through all settings. Turn off the light or loose the head to quit.
  • Advanced operation
    • Choose one of the four levels as the default medium output: Switch to medium output and turn the flashlight on and off for 20 times to cycle through the next output setting.
    • Choose one of the four levels as the default low output: Switch to low output and turn the flashlight on and off for 20 times to cycle through the next output setting.
    • Tail strobe feature (off by default): With this enabled, you can access strobe output at the tailcap switch button . To toogle this function, switch to 1st level and turn the flashlight on and off 20 times. With the tailcap strobe setting enabled, a double press of the switch button will activate the strobe output.


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
  • One piece head design for maximum heat transfer
  • Tailcap battery stabilizer design to prevent battery movement inside the battery tube


Battery Safety Precaution

Ensure the protection circuit on the 18650 battery to have current trip of 10A or higher (EAGTAC 18650 2600mAh and 3500mAh (Sanyo GA cells) with protection PCB built-in at anode both have 8A trip current). Always use proven EAGTAC batteries for best performance and reliability. Safe chemistry IMR 18650 li-ion are also supported, however use it with precaution as they are unprotected.

Do not use any CR123A in this flashlight as it may overheat when flashlight is set at maximum level.

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.

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. This weight measurement is based on the Kit model excluding batteries
  2. All batteries must have protruding top button. Protected li-ion battery with 2.5V low voltage cut-off setting is recommended. Using li-ion battery with higher cut-off value (e.g. 3V) may cause the LED to blink when the battery is almost drained due to battery restarting itself. This is normal.
  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 measured in a calibrated integrated sphere. This measurement is generally more accurate as it takes into consideration the loss from reflector/lens/bezel.
  5. After 60 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 C3800 adjustment output range is between 80% to 100% (72%-100% for W1900). This feature maintains the flashlight surface temperature to be about 130°F (54 °C) for C3800 or 140°F (60 °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. Runtime is measured using one EAGTAC 3500mAh high discharge 18650 li-ion batteries. MAX level runtime includes out-of-current regulation time period when battery is almost depleted. With active thermal management feature, runtime in cooler environment will have shorter runtime (higher MAX output) and long runtime in hotter environment (lower MAX output).