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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. A Bright light! 4 Star Review

    Posted by on 20th Nov 2018

    I use it when filming in underground mines. It is very bright and lights up large stopes well. I had to replace my first one I dropped it only a few inches and the glass broke on a rock so they are a little fragile.

  2. Very powerful 5 Star Review

    Posted by on 13th Nov 2018

    This lite is unreal for it's size, it really lites up everything

  3. as good as i hoped it would be 5 Star Review

    Posted by on 19th Oct 2018

    i received this nicely packaged TC20 in NW today in the mail. i charged it up until the light turned blue. out of the box i love the small stature and solid feel. the light screems quality and the output is exactly what i hoped for. it lights up a room when you put it on high/turbo. very usable and the size is perfect to keep inside a coat pocket. the color of the beam is perfect. overall a great item and a decent price point.

  4. Perfect walking light 5 Star Review

    Posted by on 16th Oct 2018

    The light is smaller than you would think. Shorter than some of my 1 x 18650 lights, but a bit wider. Overall it’s very comfortable to hold.

    The beam shape is perfect for an all around light. The low mode is great for close up work. Medium is perfect for walking. It had enough throw to see further away objects, but it also has a nice wide hotspot and bright spill. High and turbo is great for lighting up everything in front of you.

    I keep the light by our front door and use it for walking at night, taking out the trash, camping and for everything else I might need a light for.

  5. Great Light! 5 Star Review

    Posted by on 30th Sep 2018

    Excellent light for all kinds of tasks. Not very EDC friendly, but it's not supposed to be. It is great as a utility light like a old 2 D cell Maglite. Thrunite please make a 2 Cell version of this light. That would be really awesome!

  6. Does everything well 5 Star Review

    Posted by on 24th Jul 2018

    I bought my wife a Catapult and I liked it so much that I wanted one too.....except for one thing. It didn't really fit into my pocket very well. So I considered this one. I was hesitant to buy it because I like the spotlight kind better than the floodlight kind of light. I bought it anyway and am very happy I did. It is kind of a cross between the two and you get the best of both kinds. It provides even lighting, but still really lights up the middle. The only negative I have is that the turbo really isn't a great deal brighter than it is on high. Actually though that isn't at all a problem because it is so bright on high there is no tendency to look for a higher setting. That mean that if you are like me, and use it 95 % of the time on high, the button works perfectly. You don't have to cycle through all the settings to get what you want. One push on, and one push off is all you need to do. Perfect.

  7. Nice light 5 Star Review

    Posted by on 6th Jul 2018

    Bought to replace my r50 seeker. It's brighter and takes a normal 26650 that can be charged in a charger

  8. Great Light But... 4 Star Review

    Posted by on 20th Jun 2018

    This Thrunite TC20 is an incredible light. The beam on it is fantastic! It's the best mix of flood and throw. I bought a neutral white for myself & a cool white version for a friend. I especially liked the tint on the cool white version. The pleasant cool white tint surprised me, and this is coming from a person who mostly buys neutral white lights. The neutral white gives very good color rendering. I don't know what Thrunite did but, the tint on both versions is very good, and this is great considering how the CREE XHP 70/70.2 emitters have noticeable tint shift. In addition to the great tint, the size is remarkable at under 5 inches.

    Given my many praises for this light I have to say that there are some things I'd like to see added to the TC20 in perhaps a future updated version.

    This includes:

    1) A button lockout option (yes, you can loosen the head slightly and the light will turn off but, an electrical button lockout would be better)

    2) A slight modification to the user interface in which after you double click to get to the highest 3800 lumen setting you can click once to return to the previous setting you were on. I have to cycle the light back through its modes to get to were I was.

    3) A 1000 lumen mode would also be greatly appreciated given how quickly the light heats up.

    All in all, the TC20 is a great light at a great price. It is an even greater value when the light is purchased during the 20% off promo.

  9. NW Very Yellow Tint 4 Star Review

    Posted by on 15th Jun 2018

    The neutral white version is in my opinion not "neutral." It should be classified as "warm." If the light is shined on a perfectly white color, it does look white. However, if it is a slight off-white with a little yellow in it, the flashlight shining on it turns it yellow, not off-white.
    I've read reviews for the V6 and they said the Cool White is closer to neutral white. Wish I knew that before purchasing, because I hate a blue tint which picks up fog and moisture in the air too much, so I ordered the NW. The CW might have been what I was looking for--close to true colors, neither blue nor yellow tints.

    The other specs seem to be dead on as far as brightness. Very wide spread with a diffuse hotspot for throwing down the trail quite a bit farther than if it didn't have a central hot spot at all.

    Also, I had to fix the flashlight before it would work. The paper insert to insulate the cell from the circuit was glued to the bottom, probably by excess flux. I had to carefully remove it with pliers, then clean thoroughly with a Q-Tip and alcohol. At least I finally got it working and love it.

  10. Bright light, maybe rushed to market? 4 Star Review

    Posted by on 10th Jun 2018

    I preordered this light some months ago, waited patiently, and received it. Charged it and used it. Very bright, gives off substantial amounts of light, and runs for the advertised times.
    On the 2nd charging, I got the purple/flashing light. I had to disassemble the light and clean off some sort of protective coating (like a grease) from the positive contact on the light, reassemble, and then it worked again.
    One downside is I don't see bare 26650 batteries for sale on the TN site. Makes it harder to have extra batteries on hand (hard to know which other brands are decent).

  11. Solid Performer! 5 Star Review

    Posted by on 11th May 2018

    I pre-ordered this in March, and received it a few weeks ago. Out of the box it worked fine, but after a day, it refused to charge (purple light on the switch). ThruNite support was really not much help, and I needed the light for a trip the next day.

    I completely disassembled the light and found remnants of soldering flux from the manufacturing process on the battery contacts, with additional smudges of it very close to the contacts. After cleaning the parts with electrical parts cleaner, I reassembled the light and it (so far) continues to work fine.

    The run times with the included battery are as advertised, if not a little better.

    The light DOES get hot in Turbo mode, so I suggest using it sparingly (it will get too hot to handle if you are not wearing gloves).

    The light gets warm, but not terribly so, in HIGH.

    I would not call this light a thrower or a flood - it's sort of a hybrid. The throw ends after about 40 meters, and the flood aspect is just a few degrees too narrow for my preferences.

    That said, this is an all-around good light. I used it in a Nevada mine, several hundred feet underground, and 2000 feet back to the end of the mine. Being a large mine, we had a 4 hour exploration going, and after 2 hours, the battery exhausted itself (I switched to my backup light, a TN Neutron).

    I charged the battery that night, and it was ready to go again for the next round of exploring. On that trip I managed to drop it in water, dust, and mud and it never stopped working.

    I would very much like to evaluate other ThruNite lights on my YouTube channel, where I use the products for various underground exploration activities.

  12. Great light with good life 5 Star Review

    Posted by on 27th Apr 2018

    I have only had a few lights, most of them older models you might buy at a discount sporting good store. I was sick of always buying batteries and always worrying about a dimming light. NO LONGER! I researched all these new brands I had never heard of, Nitecore, Acebeam, Fenix Olite, etc...What I wanted was a small, bright, water resistant , rechargeable light that would be durable enough to take on backpacking and climbing trips. The search ended with the ThruNite TC20. I now have easily over 2K lumens and 3K when I need it that I can recharge in the car or with a small solar cell. I use this lamp for photography trips in the high sierras. It also has been functioning as a video light when I need it. As a photographer, the only suggestion I would make is if there was a 1/4 screw mount someplace on the body to mount on a tripod.
    Awesome light
    Great price.


    Posted by on 26th Apr 2018

    eccezionale torcia dal design compatto che può stare in qualsiasi posto senza disturbare.Luce potentissima per le sue dimensioni per adesso è la mia torcia preferita
    Come difetto dopo un uso prolungato in modalità turbo scalda un po
    La consiglio a pieni voti

  14. Good Light 5 Star Review

    Posted by on 25th Apr 2018

    It get's very warm on the High setting after extended use. It's very bright on high, which is why I never use the Turbo setting. Overall good light!

  15. Ba RITE!! 4 Star Review

    Posted by on 25th Apr 2018

    Cant beat this flashlight for power and size... I carry it EDC...for work n hunting fishing...cons are ..ya half to twist the head half turn as a Safety to keep from accidently turning on...aslo my holster BROKE and almost LOST my light in the river!...The power button just needs work maybe make it glow ..its hard to feel find..I like the construction seems very well made ..I really do love this light ..AQuachiggger turned me on to it!...Thankx again ..will def recomend@@!!!

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