Fenix TK10 Review W/Beamshots & Lux Readings/Overall Output

adirondackdestroyer

Flashlight Enthusiast
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Oct 31, 2005
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This review is of the Fenix TK10. It is the newest offering from Fenix and is basically an upgrade to the Fenix T1. This light was supplied by www.Fenix-Store.com , and can be purchased in the following link:

https://www.fenix-store.com/product_info.php?products_id=433

Here are the specs from the manufacturer:

Features
• Cree Premium (Q5) 7090 XR-E LED with lifespan of 50,000 hours
• Two modes of output, selected by turning the bezel:
¨ Turbo Mode: Constant 225 Lumens, 1.5 hours
¨ General Mode: Constant 60 Lumens, 10 hours
• Highly efficient focusing head - throws beam over 200 meters
• Textured Reflector for optimum balance and transition between spot and flood
• Digitally regulated output - maintains constant brightness
• Low battery indication system
• Uses two 3V CR123A lithium batteries
• Durable aircraft-grade aluminum housing
• 135mm (length) x 34mm (diameter)
• 136 gram weight (excluding batteries)
• Premium Type III hard-anodized anti-abrasive finish
• Waterproof to IPX-8 Standard
• Tactical grip ring for Cigar technique (removable)
• Toughened ultra-clear glass lens with anti-reflective coating
• Tactical tailcap switch with momentary-on function
• Tactical body clip – attaches securely for easy carrying
• Anti-roll, slip-resistant body design
• Included accessories: holster, lanyard, two spare o-rings, spare rubber switch boot, allen wrench, two spare screws, and copper spacer

Construction:
The TK10 is very nicely built. It has a nice hefty feel to it, yet isn't top heavy at all. The HAIII is perfect without any machining marks at all. The threads were a little gritty right out of the package, but after cleaning/lubing them up they are silky smooth. The body and tailcap have some knurling on them.

Bezel/Head:
The emitter in my specific unit is perfectly centered. The lens is perfectly clear. There is no dust/finger prints or anything in the head. The orange peal reflector is very nice and makes the beam very smooth. The head features some slight crenelations so that light can be seen when the light is placed head down on a table. They would also help in case you needed to strike someone with the light as well. They are rigid but not sharp at all (not like the ones used in the NDI). They shouldn't ever damage the inside of your pockets,
so don't worry about that.

Body:
The body of the light has an anti roll section so that the light won't roll off a table. It seems to work pretty well. It also has two screws near the head of the body that can be unscrewed so that you can attach a clip for clipping it to your pocket. Near the tailcap of the body you can either screw on a grip ring so that you can hold the light like a cigar, or you can screw on a golden spacer to fill the gap. I personally wish the spacer was HAIII like the rest of the body, as the gold color looks a little tacky.

Operation:
There are two levels of output which are selected by turning the bezel. If the head is tightened all the way it is in turbo mode, and if the head is loosened it is in general mode. I had a hard time rotating the head on mine until I lubed up the threads and the thick o ring in the head end of the body.


Beam/Output:
The beam produced by the TK10 is one of the best I've ever seen in a Cree based light. It is super smooth without any rings at all. The tint on high is extremely white! Here are some output numbers from my homemade lightbox:

Low = 1,200 Lux/199 Overall (39.8 lumens)
High = 5,580 Lux/931 Overall (186.2 lumens)

To be honest I expected it to be a little brighter on both settings, but the beam is so nice that I'm willing to overlook it.

Tailcap:
The TK10 uses a forward momentary clickie, which is very responsive. The light can not tailstand due to how far the clickie sticks out past the end of the tailcap. In my opinion this is a good thing because it makes the light much easier to operate in the momentary style.

Overall:
Overall this light is a very good upgrade to the original Fenix T1. They fixed the problems people were complaining about and added some other nice features as well. The quality of this light is very high compared to what most people expect from a light made in China. I would say it is just as nice as any 2 cell tactical light on the market.

PICS:
First pic is the TK10 compared to a Minimag, second pic is the TK10 with golden spacer, third pic is the TK10 with cigar grip ring, fourth pic is the TK10 on low, fifth pic is the Streamlight 4AA Luxeon, sixth is the TK10 on high.


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Do you find the spill in Turbo to be as bright as I do? It smokes the other lights I tested it against for spill and overall output.

I notice it's right up there in size comparable to LumiPower M1, SF G2 or 6P.

Only 2x123 light a pretty fair amount smaller is Romisen RC-F4.

That said I'm pretty dang glad I jumped on the pre-buy!!!
 
Two Ultrafire silver 16340 fit in the light, but the tail cap won't close down.

I used a jumper and got light.

Two Ultralast 3v 123 fit and provided light.

Two battery staiton primaries give light.


I notice no major difference (actually notice NO difference) between the three types.

I have tried a 17500 Li-Ion and high flickers.

An Ultrafire 17670 protected won't enter the tube.

It is a stinking crying shame that it won't run a 17670 or 18650. I would get quite a bit more actual use out of it with that option. 123/16340 size batteries give up way too much runtime for me to use them.

Primaries only for me in this light.

All the talk seems to keep harping on tail stand ability. It won't. Get over it!
 
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Two Ultrafire silver 16340 fit in the light, but the tail cap won't close down...
What does "won't close down" mean. Does it mean the tail cap can't be engaged to start screwing in? That is, they really DON'T fit?

Does it mean that the tail cap won't screw all the way in so the end of the body tube won't contact the switch retaining ring? So it won't light up unless you put a conductive coil into the tail to bridge a gap?

Or....?
 
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