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ThruNite TC20 3800 Lumen Flashlight

Expected ship date is 02/23/2018

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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Previous | Showing reviews 16-27 of 27

  1. TC 20 5 Star Review

    Posted by on 29th Jan 2018

    This is a hell of a flashlight, I ordered 1 just to try it out and showed it to a few fellow firefighters and now I ordered 5 more for the department. Its extremely bright and compact. Love the UI as I do with all Thrunites. I think it out performs my TN 30 mini by a long shot, although it does have a higher lumen rating it just doesn't seem right considering the size difference. This light seems to keep its brightness up for a respectable amount of time. The TC 20 is a perfect search and rescue light, as we will have 1 in each rescue truck. I highly recommend.

  2. Compact and high lumens 3 Star Review

    Posted by on 29th Jan 2018

    My honest review after one month. This light is not as bright as the Fenix LD60 which is 2800 lumen. Both are clear white and they are the same in flood and throw. I've personally conducted this test over and over. I think some research into correct lumens of the TC20 Thrunite , should be conducted. I'm not favoring one light or the other , just my honest comparison of the two lights and their lumens rating. I always wondered how such a small battery one one light could be brighter than a light with 3 Cree lights and 3 18650 batteries. Hope someone can get back to me with a video , povinbg me wrong. Thank you

  3. Compact and bright 5 Star Review

    Posted by on 28th Jan 2018

    so far i have not used it through a full battery charge in one use, but clearly it lasts longer than an 18650 battery by a long ways. Very good beam and very good spread, compact and easy to use . I have always thought ThruNite products were great and i have 3 different lights as well as giving them as gifts. Can't beat them especially for the prices

  4. I like enough to regret many other purchases. 5 Star Review

    Posted by on 27th Jan 2018

    USB charging is a great feature. The huge battery and illumination are just perfect for walking the dogs and using the powerful lighting it can produce.. I own many of your products (~10 ) and this powerful light is the most versatile one I own. I really like all the others from your medium to the big guys but, this is a Home Run. I'll buy two more to replace others that can't compare to this product.

  5. Lights up everything 4 Star Review

    Posted by on 27th Jan 2018

    This light is truly built like a tank. The runtime is impressive and finally a light makes use of a super bright led and gives you enough juice to actually make use of the higher brightness levels for more than a minute or two. The throw is a super bright flood, but the throw is impressive. Unfortunately the throw is washed out by the foreground flood that makes the light not as helpful seeing distant objects even though the area is well illuminated. Having a polished reflector may help. A reflector that shrinks a little bit of the flood would make this light perfectly balanced. The light feels solid with no rattles and is small in the hand for the amount of light thrown. This light is just about perfect and is a fantastic light for the money.

  6. TC20 Flashlight 4 Star Review

    Posted by on 26th Jan 2018

    Just a fantastic flashlight. Compact and most powerful and illuminating. The only complaint I have of the product is that there should be the ability to telescopically narrow the beam somewhat to the Suprabeam Flashlight carried by Lee valley Tools.

  7. LEO USE 4 Star Review

    Posted by on 25th Jan 2018

    I've only had the light for afew weeks and it's a great light for it's size. I'm a night shift officer and I'm picky about my lights. I rate it high but 2 pet peaves= I just assumed it had a tail cap button like all your other lights, which I love. And 2nd I would really recommend making an adjustable beam focus. Because wow, it lights up a football field in high mode but that's rarely desirable in my line of work. I would love it to have a beam focus that goes from the broad to a more zoom straight ahead for a greater reach and more concentration on a fixed point. I've been searching for afew suspects while getting blinded from the glare off buildings and cars from such a huge light splash. The power output is just about perfect but again too broad in my opinion.

  8. Amazing! 5 Star Review

    Posted by on 25th Jan 2018

    Another amazing product by Thrunite. I think it’s just awesome!

  9. Best Flash Light Ever 5 Star Review

    Posted by on 24th Jan 2018

    Took this for back country winter camping. Worked great! Great product.

  10. Wonderful light 5 Star Review

    Posted by on 24th Jan 2018

    I have got the natural white for geocaching. It is the brightest flashlight i ever own. The battery life is also great. I love this flashlight.

  11. Very compact at 3,800 Lumens! 5 Star Review

    Posted by on 23rd Jan 2018

    As battery and LED technologies improve amazing products are developed. This flash light about 4 11/16" long and producing 3,800 Lumens is impressive. It is compact enough to be considered an EDC at 8.8oz. A great rechargeable flashlight to have in an emergency situation for temporary lighting or in any situation where you need to throw a lot of area light in a small package at a great price!

  12. Great light! 5 Star Review

    Posted by on 19th Jan 2018

    Very happy with the TC20. Thanks for finally making a bright hand sized 26650 light. Quality of light and included battery is excellent and the UI is very good. Lockout is by a small turn of the head of light

Previous | Showing reviews 16-27 of 27