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Fenix TK20R v2.0, 3000 Lumen, 21700 Powered, USB-C Rechargeable, APF Flashlight, Black

£9.9£99Clearance
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Once charging is completed, be sure to tighten the light head to maintain the dustproof and waterproof ability.

Fenix TK20R V2 is a powerful update to the popular TK20R and is the longest throwing Fenix single cell LED Tactical torch. The Fenix name means “a living bird, a perfect thing” and since producing their first product on 3rd of September 2001, Fenix have always strived to achieve perfectionThis what I’ve come to expect from higher-end Fenix lights using the SST70 LED with a boost driver: Excellent regulation and laminar runtime graphs. Although this isn’t an apples-to-apples comparison, judging from the graphs, it seems as though there haven’t been many meaningful performance gains with this new LED versus the older SST70 in real-world use. Professional users demand consistent light output, and the TK20R V2 delivers here. The thermal regulation is excellent as well, with zero drama, sawtooths and consistent output. The light was also hand-holdable throughout the Turbo test as well, and if you need Turbo, reactivating it is possible once it cools off. I also like the fact that there’s visual LVP in addition to the LED indicator: After the last step down, the light blinks 3 times every 5 minutes until shut down. Unscrew the tail cap or remove the battery to prevent accidental activation during storage or transportation.

When the voltage level drops below the preset level, the flashlight is programmed to downshift to a lower brightness level until Eco output is reached. When this happens in Eco output mode, the light blinks 3 times every 5 minutes to remind you to timely recharge or replace the battery. Additionally, many of these everyday carry flashlights have oversized clips that can become uncomfortable when you grip the flashlight. The TK20R V2.0 is perfect. It holds tight without extending too far off the body of the flashlight. And you can remove it if you need to. Strike Bezel The light memorizes the last selected output excluding strobe. When turned on again the previously used output of general mode will be recalled.

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Do not shine an object at close range, to avoid burning the object or causing danger due to high temperature.

On the tailcap, there are two buttons used to operate the light. The smaller button activates the strobe if the flashlight is turned off, and cycles output modes when it is turned on. The larger button is an on/off toggle – simple. I love it when a flashlight has simple buttons like this because it takes away the guesswork of how it will operate and how it will perform when you need it. Features The light will accumulate a lot of heat when used on Turbo output levels for extended periods. When the light reaches a temperature of 60°C or above, the light will automatically step down a few lumens to reduce the temperature. When the temperature drops below 60°C, it will then allow the user for the reselection of Turbo mode. Fenix doesn’t conceal the identity of the LEDs they use, which I think is a nice concesion for consumers who care about such things. Whereas the majority of Fenix’s higher output lights are fielding the Luminus SST70, for the TK20R V2 it’s been booted in favor of its domeless stablemate, the SFT70. This is an entirely new LED, and hasn’t had much exposure in the flashlight continuum. I can’t find a data sheet for this LED, and I haven’t seen it featured in any other mainstream lights besides the Olight Warrior 3 and 3S. I do know it’s a 5050 (5mm x 5mm) footprint, so it fits anywhere the SST70 fits, and it runs on 6 or 12 volts. Like the SST70, it retains the quad die arrangement on a single substrate. The dies are pretty close together, but not as close as something like an XHP35 HI, and the design is similar to the SFT-40-W in that the bond wires are embedded in the substrate. This helps current handling and heat dissipation at higher drive currents.Fenix produce the best quality torches, headlamps, lanterns, bike lights, batteries, chargers and accessories. From mountain rescue to military, sports, Industrial and personal use, the Fenix range features a durable, high performing premium product ideal for your extreme or everyday environment. Long-term use can result in O-ring wear. To maintain a proper water seal, replace the ring with an approved spare. Lumens are measured using my home made 30 cm integrating sphere, and I use a Digi-Sense 20250-00 datalogging luxmeter. The sphere has been calibrated using many lights of known output, including a Makkua calibrated Convoy S2+. All measurements taken at 30 seconds with the fully charged ARB-L21-5000 V2 5000 mAh battery. I didn’t measure the current due to the design of the tailcap and current path. Mode Intelligent Overheat Protection The light will accumulate a lot of heat when used on Turbo output levels for extended periods. When the light reaches a temperature of 60°C or above, the light will automatically step down a few lumens to reduce the temperature. When the temperature drops below 60°C, it will then allow the user for the reselection of Turbo mode.

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