NiteNumen TK 35

LED Flashlights – General Info 18650 Flashlights
21

I swapped out the SST-40 5000K for a SFT-40 CW pre-mounted on a 20 mm from Convoy.

Wow the SFT-40 is impressive! Not a fan of the tint, but the numbers don't lie.

The TK-35 has a 53 mm diameter head. Lumens taken at start and 30 secs - maukka calibrated #'s, throw taken at 5 meters:

SST-40 5000K, VTC5D: 8.5 amps, 2060-1840 lumens, 141 kcd

SFT-40 6500K, 30Q: 8.35 amps, 2430-2220 lumens, 313 kcd

It doesn't even look well focused, not a well defined hot spot, messy corona, but the output is excellent, and the throw for this size reflector is quite good as well.

22

that’s really impressive. seems like sft-40 is going to be very popular.

23

Yea, I would convert more lights, order more but the big Q is 5000K availability, if and when. Kaidomain's SFT-40 listing is confusing - they list 6500K and 7500K but I don't see the choice given, and blocks the order saying to choose a color tint. I have way more confidence with Simon.

So I got 1 more mounted on 20 mm, and 5 bare to decide how to use them. Might upgrade a SST-40 quad light, like the HK4S. Would like to try the 20 mm mounted one in the BOSS1 -- big reflector, 100 mm head diam. I got over 700 kcd on a de-domed XP-L, so this should do much better.

24

I’ll probably wait patiently for ~5k, though I suppose the numbers won’t be as stellar. Would be very interesting to try in Haikelite HT35.

25

I definitely want to try one in a zoomie. I got a HT35, but it's 2S cells, 12V LED driver, so I'd convert to one cell, maybe a 26800, and driver mod to a FET+1. I got other decent zoomies though that i can convert quicker, easier, like a B158 or a 1504.

26

Yeah would need a driver change. As much as I like 26800 the HT35 would probably feel out of balanced if shortened. Maybe Simon will make a Z1 with sft40!