The normal charging time of the included FenixARB-L21-5000 V2.0is approximately 3.5 hours from depletion to full charging. Once charging is completed, be sure to tighten the light head to maintain the dustproof and waterproof ability. Trong các điều kiện môi trường đặc biệt, việc sử dụng đèn pin cần tuân theo các quy định cụ thể như sau:

Turbo: 3000 lumens (overheat protection brightness step down after approx 50 seconds from cold), 475m beam. Full power can be re set when the torch cools. It is prohibited to use 18650, 16340 or CR123A batteries. * 21700 Li-ion batteries are powerful cells designed for commercial applications and must be treated with caution and handled with care. Using only 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. Today I’ll be taking a look at another new Fenix product, and another second edition of an existing light. This time it’s a tactical-use flashlight, and if we’ve learned one thing about Fenix here at 1Lumen, it’s that they have carved out a pretty deep niche in this particular corner of the market, producing some excellent and well-made professional-quality lights. EDC, tactical, WML, duty, and general-purpose lights are all available across several product lines. Fenix sends us their flashlights barebone, simply because we usually receive them a couple of months before the official release so we can test them properly.

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 Fenix TK20R V2.0 is a compact rechargeable torch, that updates it's predecessor with a higher output of 3000 lumens, utilises a different LED, battery type, switch design and charging port, and throws the beam further. You likely know that this flashlight is a powerful everyday carry flashlight that you can charge with a USB-C–but how does it perform? I used the Fenix TK20R V2.0 for over a month, through a power outage, and as my go-to flashlight as I worked in the woods. What’s in the Box? The Fenix TK20R V2.0 fits absolutely PERFECTLY in my hand. The weight and size make it feel just right. And the anti-slip grooves on the body of the light keep it secure even when it’s raining–which the TK20R V2.0. can handle thanks to its IP68 waterproof and dustproof rating. A Stand-Out Feature: The Protected USB-C Charging Port

Battery Level Indication Each time the light is turned on, the indicator (unscrew the light head to see) will indicate the battery level and will last for 3 seconds. This flashlight will accumulate a lot of heat while working, resulting in a high temperature of the flashlight shell. Pay attention to safe use to avoid scalding. This 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.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. 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. The battery that comes with the flashlight is ARB-L21-5000 V2.0 Li-ion battery (21700), but the TK20R V2.0 is also compatible with Fenix ARB-L21-5000U (21700) and Fenix ARB-L21-4000P (21700) batteries. Straightforward Operation