Fenixlight đã tung ra phiên bản TK75-2015. Cây TK75 có hai phiên bản cũ , đó là phiên bản 2600 lumens ( dùng bóng XM-L U2) và 2900 Lumens ( dùng bóng XM-L2 U2). Sự khác biệt chính, đó là việc TK75-2015 được trang bị 4 bóng Led thay vì 3 như phiên bản cũ. Trong bài review này, chúng ta sẽ so sánh phiên bản mới và phiên bản cũ.

TK75-2015 : So sánh trực diện với phiên bản cũ

Kiểu dáng 2 cây đèn rất ấn tượng


Đầu đèn lớn, đều sử dụng bóng Cree XM-L2 U2


Kiểu dáng giống nhau, chi tiết hoàn thiện khác nhau


Hãy bắt đầu bằng hướng dẫn sử dụng và công bố kỹ thuật của hãng đối với cây TK75-2015: 

Features:

·Sử dụng 4 bóng led Cree XM-L2(U2) với tuổi thọ bóng lên tới 50.000 giờ. 
·Sử dụng 4 pin Li-Ion sạc 18650 hoặc 8 pin CR123A 
·Mật độ sáng rất cao với 4000 Lumens, mức sáng Burst và Strobe dễ kích hoạt 
·Có hệ thống hỗ trợ , đề phong việc cầm đèn quá nặng. 
·Có khả năng thông báo thời gian sử dụng thực tế. Có chế độ khóa đèn. 
·Dài: 185mm (7.28in.)
·Đường kính: 52.5mm (2.07in.)
·Đầu: 87.5 (3.44in.)
·575-gram nặng (20.28oz) Không tính pin
·Mạch điều chỉnh, đảm báo ánh sáng ổn định và liên tục. 
·Có cảnh báo khi pin gần cạn. 
·Có mạch bảo vệ, đề phòng gắn ngược pin. 
·Có 2 công tắc, thuận tiện cho việc sử dụng các chế độ sáng. 
·Đèn làm bằng nhôm cao cấp tiêu chuẩn hàng không. 
·Công nghệ Anox Nhôm cao cấp type III. 
·Kính cường lực siêu sáng , phủ Anti-Reflective cho anh sáng xuyên qua tốt hơn. 

And the output specs, (also a comparison with the earlier version):

NOTE: the 2015-version is tested with 3400 mAh, the 2900 lumen-version with 2600 mAh cells

TK75-2015


TK75-3 x XM-L2 U2 


Unboxing:

Good to see that this “upper-class” light comes in a sturdy carrying-case. This box will prevent the light and makes it easy to store the light and the accessories while not used. Except the prints on the enveloping carton this carrying-case is equal to the earlier TK75-package. So I think it’s not surprising that I can tell the contents are the same too, only the 2015-version comes including a shoulder-strap. Strange that we can’t find a holster, it should be added next time.. Personally, I’m happy with this boxes, and wish Fenix should bring more lights in such a box. More pictures below that also show the contents…

same boxes, only difference in prints


equal cases, except the stickers


inside: TK75, manual, warranty, leaflet, o-rings and lanyard. 2015-version has a shoulder strap.



Impressions:

First impression: Big but compact! Both are impressive, some heavy flashlights that are excellent manufactured and finished. Good job on anodizing, clear glass lenses and perfect centered leds. The reflectors are clean, except one minuscule flaw that I found in the TK75-2015’s reflector. The threads are well machined and run smoothly, and are greased sufficient. Both are lights for some bigger “men-hands” because of the proportions. The TK75-2015 has some better grip and also a better anti-rolling design. Tailstanding is no problem, but I don’t understand why Fenix has done away the double lanyard-holes: The previous version (whit added lanyard) is standing more stable.

At first sight, those lights look, except the reflectors, almost equal. But when we have a closer look, we see a lot of differences. Let’s name the most important: the notches at the heads, the body texture, the print on the buttons, the tripod connector at the TK75-2015 and the shape of the tailcaps. Also inside some differences: A little spring at the battery-contact and the battery-magazine of the latest version has its own print. High quality also inside: No sharp parts or solder rests and well finished battery magazines. Both lights work with (optional) extenders: You’ll get double runtimes by the every extended kit. Overall we can say the built quality and finishing was excellent on the previous version, and is luckily the same at the 2015-version. Let’s have a closer look at both lights now, shown by a lot of pictures!

at first sight, no big difference between the two…


the same dimensions


head-standing: mind the notches and the tripod connector


tailstanding: different tailcaps and double lanyard holes for the TK75-2900 lumens


thanks to improved texture the TK75-2015 has some better grip


four against three XM-L2(U2) leds


both lights are perfectly machined an finished


latest version has better anti-roll


the buttons: same shape, different prints


head to head


two big Fenix brothers…


which are a kind of portable carlights 


deeper reflectors for the TK75-2900 lumens version


the lights in three parts, but you can unscrew the heads too


well lubed and excellent machined threads


difference inside: the TK75-2015 has a bigger battery-contact with little spring


difference in contacts and print


double lanyard-holes on the TK75-2900 lumens version, so better tailstanding


new at the TK75-2015: a shoulder strap, nice addition!
 

multifunctional: a (removable) tripod- and strap connector in one


with connector mounted on a tripod


without connector mounted on a gorilla pod


the leds are well centered


huge, but rather compact


nice, new feature: a built-in voltage indicator




User interface:

When we look at the prints at the buttons, we can’t expect the same interface. The 2900 lumen-version uses the right button for on/off and the left to cycle through the modes. The TK75-2015 uses the right button for on/off as well for cycling through the modes. Therefore it takes longer to turn the TK75-2015 on, the TK75-2900 has “direct-on”. The left button is for the instant modes: A short press will enter instant turbo (no matter from off or on); a longer press will give instant strobe. These modes are locked: cycling through other modes is not possible while in direct turbo of strobe. Go back to normal mode by clicking the left button. The TK75-2900 has two instant modes: Instant strobe en instant SOS. Press and hold the left button for more than 1 second for Strobe, more than 3 seconds for SOS-mode. 

A strange fact is the lack of a SOS-mode at the TK75-2015. I hope this will come back in future. 

In emergency falls both lights can run on two 18650 cells or four CR123A’s. Good to know this, but of course you will have shorter runtimes. Mind to insert the cells at the right way into the battery-holder: If you’re not sure about, please read the manual before 

The TK75-2015’s interface has some nice improvements against the previous: There a lockout-mode built-in and the light has also a power indicator. Press and hold both button until the light flashes to activate lockout. Same way to deactivate. While in lockout, every press at any button will give some flashes. So we can’t speak here of a real lockout  

I had to get used by the new interface, but can say, it works fine. I really like the instant-turbo mode and also the lockout function and the power indication are good new features. So, after some use, I prefer the improved interface. One thing I’d like to see: The glow in the dark or illuminated switch-buttons that Fenix uses at other lights, for example the BC30R.

Modes:

Both lights have the same power levels, normally starting at TURBO > LOW > MID > HIGH. Last used normal mode will be memorized. The three highest modes are well spaced, but still I miss a real low, and a there’s a rather big jump between the LOW and Medium. A mode that has 3 lumens or lower should be possible at this lights in my opinion. The 2900-lumen-version has above these modes Strobe and SOS, with no memory. The TK75-2015 has Strobe, instant TURBO, LOCKOUT-mode and POWER-INDICATOR mode. No momentary-on at this lights.

Both lights have a step-down from TURBO to HIGH, to prevent against overheating. At the previous version this is time-controlled (after 15 minutes) and at the TK75-2015 it is temperature-controlled. 

The POWER-INDICATOR in the TK75-2015 is a bit too detailed: It works with constant-on an flashing leds. All leds on: FULL power; two leds on and two flashing: HIGH power; only two leds on: LOW power; two leds flashing: CRITICAL power. Very innovative of Fenix, but you have to get used by it! Overall, all modes work properly and without problems, but I’d like to see a flashlight with BC30R’s user interface!

Size comparison: 

Although the TK75’s have the same dimensions, I will show you some pictures. In this comparison also a competitor, that has almost the same dimensions and output: the Nitecore TM16.

18650 cell, Fenix TK75-2900 lumens, Fenix TK75-2015, Nitecore TM16


Fenix TK75-2900 lumens, Fenix TK75-2015, Nitecore TM16


Fenix TK75-2900 lumens, Fenix TK75-2015, Nitecore TM16


the heads: all lights use XM-L2(U2) leds


and the tails


Tint:

Compared to the 2900-lumen-version the TK75-2015 has a coolwhite, less neutral tint. Luckily no blue / purple or green can be found. I’ve also compared it to TM16’s tint.



Beamprofile:

Three or four little hotspots make one big: These lights have a big and throwy hotspot, and a clear corona. Because every reflector gives also its own spill, this is clearly visible at the edges of the “flower-shaped” beam. The little deeper reflectors of the TK75-2900 lumen will give more throw. Both heads / reflectors are designed to light up a big and wide area. The beams are ok, no rings or spots visible. No PWM at any mode.

Beamshots:

As usual, we start by projecting both lights at a white wall. I adjusted the shutter speed to avoid overexposure. Distance to the wall about 1 meter.

camera settings: ISO 100, WB daylight, F/2.7, 1/800 sec, 35mm








animated picture




Going outdoors now….. At first, both lights’ modes compared to each other. Clear to see the difference: the TK75-2900 lumens has more throw and is still an impressive light.

camera settings: ISO 100, WB daylight, F/2.7, 4 sec, 35mm