Yes, it might be more appropriate to say that the length of the TK75 is in keeping with other "throwy" 3x emitter lights (which typically have deeper reflectors - like the Crelant 7G9, Xtar S1, Nitecore TM15, and Thrunite TN30). It is certainly longer than the more compact lights with shallow reflectors (e.g. Nitecore TM11, Sunwayman T60CS). And of course, the bezel width is considerably wider.But I think the height of TK75 is also much higher than many other lights of this class.
I don't believe so. There is no evidence of a thermal step-down in my testing (although runtimes were all done under a cooling fan). I certainly didn't notice any sign of one during regular use. And even in the cases where I repeatedly re-started the light (which would have led to greater heat, despite the cooling fan), the eventual step-down occurred at a specific battery voltage (i.e., was independent of heat). There is also no mention of one in any of the Fenix documentation - so it looks like there is just the timed and voltage step-down features.
Yes, it might be more appropriate to say that the length of the TK75 is in keeping with other "throwy" 3x emitter lights (which typically have deeper reflectors - like the Crelant 7G9, Xtar S1, Nitecore TM15, and Thrunite TN30). It is certainly longer than the more compact lights with shallow reflectors (e.g. Nitecore TM11, Sunwayman T60CS). And of course, the bezel width is considerably wider.
mAh is milliamp-hours, and it is a measure of battery capacity in terms of current hours (higher number, higher capacity). Any quality brand will be fine in the TK75, as long as they are all of similar age and experience, and are kept well-balanced. Properly managed and used, Li-ion cells should last you for years. Beyond that, I recommend you explore the batteries and electronics forum here - there are a lot of threads on these topics, and the experts there can guide you further.1 For how long does the 18650 3500 mAh cells live? I have 4 pieces for my TK75. Can i have them for some years?
I have them now recharged for 10 times.
2 What means mAh? Are the ones i have (Eden 3400 mAh) perfect for my TK75?
I haven't tried comparing them, but there is a lot variability in car headlamps - and I am not capable of providing a guess. I would recommend you visit the automative lighting subforum here, where there is proper expertise.3 Do i see much difference ,with a standard halogen carheadlights , and the TK75 on turbo mode side by side? You said that the TK75 and the olight X6 will win by lumens, and by beam distance.
4 What you maybe think or guess, the beam distance of a standard toyota halogen headlight,and lumen, at normal ,and high beams?
mAh is milliamp-hours, and it is a measure of battery capacity in terms of current hours (higher number, higher capacity). Any quality brand will be fine in the TK75, as long as they are all of similar age and experience, and are kept well-balanced. Properly managed and used, Li-ion cells should last you for years. Beyond that, I recommend you explore the batteries and electronics forum here - there are a lot of threads on these topics, and the experts there can guide you further.
I haven't tried comparing them, but there is a lot variability in car headlamps - and I am not capable of providing a guess. I would recommend you visit the automative lighting subforum here, where there is proper expertise.
Remco. What's up with all the pointless questions?
No, I don't have a TK70 - If I did, it would be in the tables and graphs. I would just be speculating as to how the beam compares, so I'll leave that instead to those who actually own both.
Yes, it worked fine for me. The important part is to put the cells in the appropriate bays in series (as I mentioned in the review - "side-by-side bays, with one pointing up and the other pointing down, as indicated by the carrier"). You can verify with a DMM to make sure you have them in the right bays - you should get ~8.4V across the positive and negative contacts on top of the carrier, for two fully charged cells.
3 I go test tonight, the SOS 400 lumen mode, and i will go away about 3 kilometres from my TK75, can i see it flashing at 400 lumen SOS mode then that far away in the dark?
Remco
3 I go test tonight, the SOS 400 lumen mode, .....
If you have the light, than why question if the battery-holder is sturdy? and question if you can shine far on low?
You got the light so you can see it yourself.
Are you happy with your Fenix TK75?
I wish the RC40 will come soon.
Have a nice day,
Remco
Very happy taking it tonight with me.
RC40 should be here end of this month/ early next month.