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ThruNite TC20 3800 Lumen Flashlight


Product Description

TC20 rechargeable LED flashlight adopts the 2nd generation of CREE XHP70 LED to make output up to 3800 lumens and max beam distance of 320 meters at turbo mode. With an included rechargeable high capacity 5000mAh 26650 battery and USB charging function, this super bright light can operate at the high mode of 1800 lumens. General lighting modes and strobe are controlled by the side switch. The compact design makes this light is an excellent tool for indoor and outdoor use. 


  • LED: CREE XHP 70 2nd gen. with a lifespan of 20+ years of run time. 
  • Compatible with: 1 x 26650 (ThruNite 26650 5000mAh). 
  • Reflector: Orange peel reflector.
  • Working Voltage: 2.75 - 4.2 V.
  • Output mode/Runtime:

    -Turbo (3800 lumen; 130 minutes)

    -High (1800 lumen; 145 minutes)

    -Medium (320 lumen; 10.2 hrs)

    -Low (38 lumen; 46 hrs)

    -Firefly (0.5 lumen; 37 days)

    -Strobe (2280 lumen; 180 minutes)
  • Peak Beam Intensity: 25580 cd. (max).
  • Max beam distance: 320(max).
  • Impact resistant: 1.5 meters.
  • Waterproof to IPX-8 Standard (2meters).
  • Weight: 148g without battery. .
  • Dimensions: 119mm in length x 42mm in head diameter x 33.5mm in tailcap diameter.
  • Accessories: Holster x1, Spare O-rings x2, Lanyard x1, ThruNite 26650 battery x1, USB Charging Cord x1, Spare USB plug x1, Spare Side Switch cap x1


  • Turn ON/OFF 
    Single click the switch to turn the light on and off. 
  • To Change Modes: 
    When the light is on, long press the side switch to cycle through low, medium and high.
    Shortcut to firefly: When the light is off, long press the side switch to get firefly mode.
    Double click to turn to turbo from any mode. Another double click to get strobe.
  • Memory Function: 
    The light will turn on in the last mode accessed, except firefly, turbo and strobe.
  • Rechargeable Function:
    2A charging by USB port. During charging, the indicator is RED. After being fully charged, the indicator will be BLUE.
    When indicator flashes purple, it means abnormal charging. Only firefly, low and medium modes are available while charging.

Product Reviews

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  1. Definitely Bright 4 Star Review

    Posted by on 9th Mar 2018

    I received the flashlight a few weeks ago and have had the opportunity to use and carry it as my work EDC and camping. I am a firefighter/paramedic captain in a city.
    Overall I really do like the light and have not really seen it's equal for my carry purposes, but there are a few things lacking that would make it a great 5 star light.
    Let's start with the Pro's
    #1 First and foremost it is the brightest light for the size I have found.
    #2 It is the smallest and easiest to carry 26650 light I have found.
    #3 It is easy to operate.
    #4 It is a good value and price point.
    #5 easy to charge in the vehicle with micro USB
    #6 It can tail stand.
    #7 I like the "floody" not narrow spot of the light as I am in a city and need the light in rooms, alleys and rarely longer than 50 yards.

    Now the CONS:
    #1 The switch though it functions well is difficult to feel and locate quickly in the dark, even without gloves. It could use a more tactile switch.
    #2 I have had several occasions that the light has gotten switched on in it's case, The switch could be more protected from accidental activation.
    #3 I would love to have a protected tail switch (So it could still tail stand) that could activate turbo and strobe. Note: I don't think any of the 26650 lights have this but it would just be an awesome addition!!!
    #4 I would like if the strobe were slower and irregular, better for disorienting.

  2. Best flash light I have ever owned 5 Star Review

    Posted by on 7th Mar 2018

    A must have for any outdoorsman or survivalists

  3. Empfehlenswert 5 Star Review

    Posted by on 5th Mar 2018

    Die Lampe ist der Hammer!! Absolut handlich und trotzdem mega hell. Ein must have

  4. Small and powerful 5 Star Review

    Posted by on 5th Mar 2018

    This small light got an universal beam for indoor, city and all around the house. It feels very comfortable in the hand and is easy to use. One of my favorite 26650 battery flashlight. I have a cool and a neutral white one, because I couldn't decide. CW is near neutral and neutral is near warm white light.

  5. The Perfect Light 5 Star Review

    Posted by on 2nd Mar 2018

    Love this light so much bought three of them for use in the car, the house & another as a gift. USB rechargeable is the only way to go these days (IMO). 5000 mAh & 3800 lumens provide great run times & lots of light for impressive distances. Light weight & small enough for jacket & cargo pants pockets. Has a good feel in your hand & cycling through the modes is simple enough & more or less intuitive. Less than a week after it arrived I ran across a car accident in the middle of the middle of a highway on a pitch black night, luckily no one was hurt. The strobe mode alerted & slowed traffic perfectly until the police arrived. Suggestion: I think the battery is big enough to double as a back up mobile phone power pack ... if it had an outgoing USB port & capability. Might come in handy in a pinch. Great flashlight none the less, couldn't be more pleased.

  6. TOP GUN 5 Star Review

    Posted by on 2nd Mar 2018

    The flashlight is incredibly bright and just fantastic for everyday use. The quality is as always good, the size fits in every jacket pocket and the light menu including the good switch great. good better tc20

  7. Great little 26650 Flashlight 5 Star Review

    Posted by on 27th Feb 2018

    Very nice build quality with good materials. Useful bright gradually with long endurance in high and also turbo.
    I like the cw version very much.
    Great beam, good for have a walk with your dogs.
    The added 26650 battery unfortunately not the best. I use it with an Imalent 26650 battery an the flashlight is more powerful und keep the output much longer than with the original battery.

  8. Big Light Small Size 5 Star Review

    Posted by on 17th Feb 2018

    The TC20 has big light power in a very convenient size. The form factor is excellent,and so is the build quality. Incredible power from this flashlight! Buy one you won’t be disappointed.

  9. TC20 NW 5 Star Review

    Posted by on 13th Feb 2018

    è un ottima torcia ben fatta ben costruita, leggera, abbastanza piccola, ricaricabile tramite usb e facilmente trasportabile con la sua custodia... viene venduta già con la sua batteria 26650... emette tanta luce...3800 lumen in turbo sono tinta NW è ottima tipica di altre torce thrunite che possiedo e secondo me motivo del successo di vendite in europa...altri marchi vendono solo cool white spesso fascio luminoso però pur essendo flood in base al tipo di led ed alla parabola orange peel però non è molto ampio poichè la testa della torcia è piccola... cosa che non può essere considerata un difetto ma piuttosto una caratteristica...come sempre ottima thrunite anche nella spedizione...

  10. Good flashlight 5 Star Review

    Posted by on 9th Feb 2018

    It very whell made and it is a 5star product.

  11. well made 5 Star Review

    Posted by on 7th Feb 2018

    Like the tc20 so far. brightness is great and the beam pattern is excellent. My only wish is for a level 0f 700-800 lumens,as the jump from 300 to 1800 is too large.Interface is good,and I like that a long press from firefly gets me to low, so you don't have to turn on the light in an unknown brightness level.Once you get used to two long presses, it's great.Very solid light, like my V5 catapult,well done

  12. The cover for the charging port cover fell off the first time I was wearing it in the holster on my belt, and I lost it. 3 Star Review

    Posted by on 6th Feb 2018

    Need to work on the charging port cover. I would like to find out how to replace it.

  13. Super bright light 5 Star Review

    Posted by on 6th Feb 2018

    We use it ever day walking with our dogs! There is oe problem:1 T 20 is not enough we need more of the great flashlights....just orderd!

  14. Unbelievably Bright Light 5 Star Review

    Posted by on 3rd Feb 2018

    The main use of the light is to take the dogs out in the back yard at night . When I put it on the highest power is like turning the stadium lights on for a night game.

  15. Powerful, yet Compact 4 Star Review

    Posted by on 3rd Feb 2018

    The 26650 5 amp-hour battery required for this light is the same length as, but appreciably wider than, the 18650 3.5 amp-hour battery that we have become familiar with, so the diameter at the tail end of the knurling is 1.25 in. rather than the 1" (±) to which we are accustomed, making the tail cross-section 1.56 times as large as, say the TC 10. That, with the wide head diameter of 1 11/16" and the shorter length (4 11/16") gives this flashlight a much 'clunkier' look than most of the 1,000 lumen EDC lights we see. But those dimensions make its tail down stance very stable even with the lanyard (which comes off the side of the base) attached. The shorter length is, in part, achieved because the lack of a tail switch eliminates the need for a guard.
    The USB recharge port seals well (when you press it firmly).
    The on/off/mode switch on the side near the head is well thought out. Just turning it on will not yield either firefly, turbo, or strobe mode, but you can go to any one of these directly from 'off', and the light 'remembers' which of the other 3 modes was used last.
    Despite the TC20's less than gracile look, I find it quite suitable as an EDC flashlight.
    The sheath provided has proven adequate so far, though it could be sturdier. For that and the lack of a tail switch (which is partially offset by above-mentioned considerations), I have withheld one star, albeit somewhat reluctantly. Given the power, quality of construction, and the price point, I find this to be a very good value.

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