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Fenix does not provide LED replacement services for the time being, and users are not recommended to replace the LEDs independently, which may affect product performance and cause product damage. The battery indicator LED will indicate the battery state when the light is turned on and stay illuminated for about 3 seconds. Solid green 85% to 100%, blinking green 50% to 85%, solid red 25% to 50%, flashing red 1% to 25%. I also noticed visual LVP, with the light blinking three times about every 5 minutes after the last step down. The torch is made from durable A6061-T6 aluminium with a textured surface to provide plenty of grip and comfort when using. Low-voltage Warning 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 toremind youto timely recharge or replace the battery. Note: This only works with Fenix ARB-L21 series 21700 rechargeable Li-ion battery.
Fenixlight Limited was formed in 2001 by a group of enthusiastic young engineers intent on improving upon the lighting products then available. A. Shoppers looking for a tactical flashlight are spoiled for choice. Surefire, Streamlight, and Fenix are among the most popular brands, but they all make a range of lights for different uses, and making an apples-to-apples comparison usually comes down to personal preference. Below are the official outputs from Fenix. I will note the mode spacing is pretty good to the eye here. Note: *The turbo output is measured at total run-time, including output at reduced levels due to temperature or the built-in protection mechanism. The over-heat protection will drop the turbo brightness level if the internal temperature reaches 60°C. The Fenix TK20R V2.0 features five brightness levels, ranging from 30 to 3000 lumens, plus a strobe mode. The torch is operated by a dual tail switch; a tactical switch to turn the light on and off and a functional switch to cycle through the modes.
With the light switched off, press the functional switch to enter strobe, release the light will go out. Loaded with premium features and built to last, this outstanding Tactical torch is designed for serious use in the harshest environments. Do NOT shine flammable objects at close range, to avoid burning objects or causing danger due to high temperature! Li-ion batteries are powerful cells designed for commercial applications and must be treated with caution and handled with care. Only use quality batteries with circuit protection will reduce the potential for combustion or explosion; but cell damage or short circuiting are potential risks the user assumes.
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.
CUSTOMER REVIEWS
Equipped with a powerful Luminus SFT70 LED and powered by one high capacity 21700 rechargeable lithium-ion battery, the Fenix TK20R V2.0 puts out a superb performance with a beam distance of 475 metres in turbo. A: Fenix ARB-L21-5000 V2.0 is recommended. Other Li-ion batteries are not recommended. As an unmatched battery may cause the flashlightto fail to work normally. The flashlightwill accumulate a lot of heat when used at relatively high output levels for extended periods. When the flashlightreaches a temperature of 60°C or above, the lamp will automatically step down a few lumens to reduce the temperature.
Charging itself using the onboard USB-C port and included battery from LVP at 2.89v to full at 4.226v took 2:38:00. The light has a soft start charging when the battery is low before it jumps up to about 3A at the very beginning, and it falls as the battery charges. So a bit of a different curve then what I typically see. When the voltage level drops below the preset level, the flashlight is programmed to downshift to a lower brightness level until Low output is reached. This new model upgrades the outgoing Fenix TK20R with an increase in output from 1,000 to 3000 lumens, an increase in beam range from 310 to an impressive 475 meters, tailcap dual switch system, 5000 mAh Fenix 21700 battery and Fenix advanced Digital Pulse Transmission signal system for a combination of ultimate power output and switch reliability. The Fenix TK20R V2 is using the Luminis SFT70 LED in cool white. The light I was sent is preproduction, and actually has a Luminus SST70 LED, however that has been changed in the production light to a Luminis SFT70 LED. My Opple meter shows it as 6035k and 67 CRI when on in turbo. In lower lumen modes it warms up slightly to around 5600k and has a notably green tinge to the beam to my eye. The beam has a pronounced hot spot in the center and minimal spill with some tint shift noted. Parasitic Drain was measured at a very low 1.8uA. There was very minimal PWM here, it’s basically constant current.In Tactical or Duty mode, the light memorizes the last selected output including Strobe. When turned on again the previously used output will be recalled.
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