Fenix TK70 Review

I got the Fenix TK70.







Comes with a shoulder strap and 3 o-rings.



Batteries were included.





Uses 3 XM-L Leds







The head came with a plastic cover that covers the end.



This is where the positive anode of the battery makes contact.



These are the switches that control the brightness and on/off.



Left switch which controls the levels, turbo, high, medium and low. Right switch contols on/off. The switch that controls the levels you have to press down to get to each level. Holding down the switch will not cycle through the light levels.



Square threads are used through out the light.



The battery tube is long. The extender is installed. Holds 4D batteries.



Inside view of the tailcap.



Can tail stand.



This is the shoulder strap clips.













Size comparison

Left Fenix TK70. Right Fenix TK60



Left Fenix TK70. Right Fenix TK60



These are the lumens and run time from Fenix.

Note: The below-mentioned parameters (tested by four high-quality D Ni-MH batteries with a measured capacity of 9000mAh in Lab) are approximate and may vary between flashlights, batteries and environments.




These are the Lux numbers I got. I used freshly charged Tenergy Premium D Size 10,000mAh Nimh Rechargeable Batteries.

Fenix TK70, Low - 410 Lux @ 1 meter

Fenix TK70, Medium - 8640 Lux @ 1 meter

Fenix TK70, High - 26,684 Lux @ 1 Meter

Fenix TK70, Turbo - 64,990 Lux @ 1 Meter


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Fenix TK70 @ 96"





I didn't change the settings on the beam shots at 32'. I always shoot the beam shots at the same speed. Sorry if they look washed out in high and turbo.

The Fenix TK70 is Bright!!!!


Fenix TK70, Low @ 32'



Fenix TK70, Medium @ 32'



Fenix TK70, High @ 32'



Fenix TK70, Turbo @ 32'



Fenix TK70, Turbo @ 45'



Fenix TK70, Turbo @ 138'



Fenix TK70, Turbo @ 158'



Fenix TK70, Turbo @ 146' or 44.5 meters



Fenix TK70, Turbo @ @ 210' or 64 meters




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The Fenix TK70 uses Type III Hard Anodize. It's finish is excellent. No flaws or mis color of parts.

The TK70 uses square threads. The threads came lubed. The threads feel smooth.

It's a large light with a long battery tube. The TK70 feels balanced in my hand when holding the TK70 near the 2 switches.

The TK70 has the issue just like the Fenix TK60 does. With one hand I hold my hand near the switches and have to rotate the battery tube with my other hand to find the switches.

The carrying strap is OK. The strap fits good on the rear of TK70. There is another lanyard included that fits in the groove of the head. The loop needs to be smaller so it can stay in the heat fins of the light. My Fenix TK60 did a better job making the loop smaller. When no slack is on the shoulder strap the lanyard falls out of the heat fins groove the the head. To solve this problem I would put a knot on larger side of the loop, to custom fit it in the fins.

When I first turned on the TK70 I said to myself "Holy F!". Man it's bright!

In the low you do see a very slight green tint around the hot spot. When I go into turbo mode the very slight green tint around the hot spot is less noticeable. Most of my cool white XM-L lights have the same characteristic with the slight green tint. Only one of my cool white XM-L light doesn't. I have 6 cool white XM-L lights.

The Fenix TK70 is "insanely" bright. I do have an Olight SR90 and it's the highest Lux light I have. The Fenix TK70 is second brightest according to my Lux readings. I have not compared the beams though. Turning on the TK70 did remind me of the Olight SR90 in terms of brightness.

It's not an Every Day Carry (EDC) light.....It's a Monster!!!


I got the Fenix TK70 from Fenix Outfiitters for $214.31 from a discount listed on Twitter.

That is a monster light! I'm planning to do a Maglite triple XM-L build myself.

This is a comparison of the Fenix TK70 vs the Olight SR90 Intimidator . The Fenix TK70 uses 3 XM-L Leds. The Olight SR90 uses 1 SST-90 Led.

Left, Fenix TK70. Right, Olight SR90 Intimidator



Left, Fenix TK70. Right, Olight SR90 Intimidator



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I used freshly charged Tenergy Premium D Size 10,000mAh Nimh Rechargeable Batteries in the Fenix TK70 and fully charged the batteries in the Olight SR90.

I used my Meterman LM631 to take the Lux readings.


Fenix TK70, Turbo - 64,990 Lux @ 1 Meter

Olight SR90 Intimidator, High - 100,028 Lux @ 1 Meter


Fenix states 2200 ANSI Lumens

Olight states 2200 Lumens. I don't know how Olight got the Lumen numbers.


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Fenix TK70, Turbo @ 45'



Olight SR90 Intimidator, High @ 45'



Fenix TK70, Turbo @ 138'



Olight SR90 Intimidator, High @ 138'



Fenix TK70, Turbo @ 146'



Olight SR90 Intimidator, High @ 146'



Fenix TK70, Turbo @ 158'



Olight SR90 Intimidator, High @ 158'



Fenix TK70, Turbo @ 210' or 64 meters



Olight SR90 Intimidator, High @ 210' or 64 meters

Awesome!

I love your reviews

keep it up!

Hi erns, I have seen your lux readings at light-reviews. Can I know at which distance did you do your lux readings on the lux meter? Thanks!

2100 said:

Hi erns, I have seen your lux readings at light-reviews. Can I know at which distance did you do your lux readings on the lux meter? Thanks!

Click to expand...

I do the Lux readings at 1 meter.

Last night I was shooting the beam shots of the Fenix TK70 and the Olight SR90 Intimidator.

I had both lights on the shoulder straps because it would be easier for me to carry because I was moving to different positions.

Every time I used the TK70 for beam shots the front loop of the shoulder strap would fall out of the cooling fin when I would hold the TK70 in my hand to do a beam shot.

I found these at Cordlocks at Walmart. The Cordlock works great! It keeps the loop from falling out of the cooling fins.



I found a plastic washer I had laying around and also used that.

I tried running the Fenix TK70 in turbo with the extender off to see what happens.

The TK70 held the same Lux reading in turbo for about 10 seconds and then dropped to high. I tried again by putting the TK70 in turbo and 10 seconds later it dropped to high. It seems the TK70 needs to use the 4th D size battery to keep the light in turbo mode.


Footnote to using the shoulder strap. I took off the rear clip on the rear, the battery cap and noticed the anodizing around and inside the hole was scratched. This is from about 5 minutes of use. So be aware if you want your light to be a "shelf queen" it may not be a good idea to use the shoulder strap.

Looks good...i've got myself 1. BTW erns, can you take lux readings at say 8 or 10m? Such powerful and lights which throw a little more it is better to take it at longer distances.
Depending on the light profile and lux meter used, it could make a big difference. For some of my HID lights, I may need to use 50m. Some stuff which I have seen preferably 100m.

We can then use the following conversion. Eg 925 x (20m^2) = 370k lux @1m, candlepower.

2100 said:

Looks good...i've got myself 1. BTW erns, can you take lux readings at say 8 or 10m? Such powerful and lights which throw a little more it is better to take it at longer distances.
Depending on the light profile and lux meter used, it could make a big difference. For some of my HID lights, I may need to use 50m. Some stuff which I have seen preferably 100m.

We can then use the following conversion. Eg 925 x (20m^2) = 370k lux @1m, candlepower.

Click to expand...

My Lux Meter is a Meterman LM631.

I used freshly charged Tenergy Premium D Size 10,000mAh Nimh Rechargeable Batteries.

Fenix TK70, High - 1140 Lux @ 8 Meters

I'll let you figure it out. Don't know how to use the conversion.

Nice review erns. I have been eyeballing the TK70 myself. I love the light except for the choice of batteries. I have been leaning toward building a Mag with DW's triple XML.

@ 1m where the beam does not have the chance to spread and the light may not be in focus, i am getting 69k peak. This has 3 emitters, you need to let it spread.
At 8.17m, i am getting 86k converted to 1m
At 12.2m, i am getting 88k converted to 1m.

I am using that 200k meter on DX. The higher lux readings are not that accurate, hence we try to use distance as our friend. And this meter when compared with say the Extech (expensive) under reads to nearly 20%. With other meters which you see them using on CPF it is usually 7-10%.

So it could well be 94k-100k. SR90 the highest i have seen so far is 125k.

Compared to HIDs, add another 20-30% if you want, due to the spectral differences between LED and HIDs.