Thrunite – TC20 Pro Review (3294 Lumens, 350 meters throw, USB-C, 20%)

Today I am looking at the Thrunite TC20 Pro. This is an updated version of the TC20 V2 that I looked at in the past, and the main difference is that the Pro is using a Cree XHP 70 HI LED and smooth reflector. As a part of this review, I will be comparing it to the Fenix PD36R Pro during my night shots section later on. Thanks to Thrunite for sending this to me to look at and offer an unbias review. Any discounts or deals I have for the TC20 Pro will be in the description below along with links to my social media accounts that I encourage you to go and follow. 


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Get the Thrunite TC20 Pro at amd save 20% using code 47C8HFMW through midnight PDT 3/26/23


Packaging & Accessories

Standard Thrunite brown cardboard box here with the elastic band, I would call it functional minimalism. Inside is the entire kit with almost everything you need to maintain and use the light for years. You get the light itself, a 5000mAh 26650 Thrunite battery, nylon holster, USB-A to C charging cable, lanyard, a bag of extras including o’rings, button seal, USB port cover, and split ring, a manual, and warranty card.



Visually and construction-wise, the TC20 Pro is pretty much identical to the TC20 V2, with the main differences being the LED and Lens combination. The light is made from Aluminum and hard anodized black. Build quality is always good from Thrunite and this is no exception. The tail cap provides a flat surface that allows for tail standing and has a lanyard hole. The cap is removable and non-magnetic. Inside there is a stout spring on the tail end only.

The body tube has milled blocks in an almost frag pattern for grip. The corners are well-chamfered though so it’s not too aggressive. Square threads on both ends are anodized, smooth, and nonreversible.

The head features the standard Thrunite electronic switch with a metal button on top, and a small battery indicator LED in the middle. Directly opposite the button is the USB-C charging port that’s covered via a silicone rubber flap. It’s decent fitting and does stay out of the way. The light has moderate milling at the top for heat dissipation and weight reduction. The bezel is flat. The lens is AR coated and the reflector is smooth.



UI here is Thrunite’s standard. Single press to turn on, long press once on to cycle up between the 3 main modes, double press to go to Turbo, triple press to go to strobe. It’s a very simple interface, and it’s easy to use which is nice but also limiting. A fast ramping interface would work pretty well here too given the limited number of modes and wide range of outputs it must cover. 



Retention options include the included nylon holster. It has elastic sides, plastic dring, and a fixed belt loop. It gets the job done but is just of average quality. The light also comes with a branded lanyard and split ring that can be attached to the tail if you wish.


Size & Weight

I measured the length at 118.1mm, the diameter of the body tube at 32.6mm, diameter of the head at 42mm. The weight of the TC20 Pro with the battery is 242.5g. The light is IP68 water-rated to 2 meters. Here are some comparisons with other flashlights, including the Fenix PD36R Pro I will be comparing it to in the night shots coming up soon.

LED & Beam

The TC20 Pro is using a Cree XHP 70 HI LED in cool white. On my Opple meter measured the tint at 6092k and 69 CRI. DUV is fairly neutral with no major tint shifts. When I compare it to my TC20 V2, it has much less tint shift and much less yellow/green, especially at lower outputs. The beam on the TC20 Pro is more spotty and throws a bit further and that makes sense with the smooth emitter and dedomed LED. When I compare it to the Fexnix PD36R Pro the hot spot is of a similar size but has a smoother transition into the spill where as the Fenix is much more pronounced. I would say the tint of the Fenix is more green, especially at lower outputs. There is a small amount of very fast PWM on all modes of the TC20 Pro.



Heat & Runtime

The light is able to sustain it’s 3500+ lumens for 3:30 before stepping down to around 1800 lumens where it will run for 32 minutes, before stepping down to about 1600 lumens to finish out the remainder of it’s 1:00:00 runtime. Peak heat during this time was about 59C. Running on medium nets an impressive 9:30:00.

Where this light really shines in my opinion is the amount of time it can sustain well over 1000 lumens. This light maintains over 1400 lumens for 1:40:00. I frequently get asked what light can I buy that will stay over 1000 or 2000 lumens for an hour, well here is a good option for you if that’s what you’re looking for. In comparison to the TC20 V2 the Pro here doesn’t have quite a long of runtime but that’s to be expected with this different LED and more overall output.



The TC20 Pro has onboard USB-C charging that’s protected by a silicone rubber port cover. I charged the light charged the light from LVP to full at 4.17v in 3:17:00. You are able to use the light during charging but only in low and medium modes. It charges via USB-C to C or PD without an issue. While the included battery is officially rated at 5000mAh, I tested mine with my Vapcell S4 Plus at 5437mAh.  



The Thruntie TC20 Pro is a worthwhile upgrade to the V2. It takes what was a moderately floody light and increases its ability to throw, while still maintaining the size and form factor we know. The tint here is better on the Pro, and over it’s competitors in my opinion, and I prefer the beam tint and shape on the Pro. You do take some small decreases in overall runtime though due to that higher comparison. 

Compared to the Fenix PD36R Pro, the TC20 Pro is less tactical with it’s UI and a bit more general purpose in my opinion. It’s also generally a better value and a light I can recommend over either the TC20 V2, or the PD36R Pro dollar for dollar in my opinion. 


Get the Thrunite TC20 Pro at amd save 20% using code 47C8HFMW through midnight PDT 3/26/23