Lumintop FW21 Pro (10,000 lumen) vs Nightwatch NSX3 (9,900 lumen)

Hmm, tempting!

I have only the FW21Pro so I can’t compare, but, regarding turbo runtimes: with the FW21 they are not as bad as I’d have expected. I set the thermal regulation at 82°C and with a Molicell P42A I get 12-15 seconds before stepdown, at room temperature. And when it steps down, you can always kick it back to turbo by double clicking again, and get a few more seconds. Being so light, you can hold it cigarette style by the tailcap end, and you can get 40 seconds, maybe up to a minute of total turbo runtime before it becomes too hot to hold even by the tail… if you don’t fear frying the LEDs or battery, that is.
Even 12 seconds are more then enough I’d say, for the intended use of this light… this is essentially a quasi-EDC, it is smaller and lighter than the NSX3, it has a clip… it’s a light to carry around and use at a “low” level it can hold indefinitely, and if you need a few seconds at 10000 lumens well, you can have it.
The main drawback of this light would be the ugly tint and horrendous tint shift.

Heat dissipation is a bit overrated with this class of flashlights I think. Even the NSX3 won’t hold the 10000 lumens for more than… 30 seconds maybe? It’s still not enough to be an appreciable advantage over the FW21Pro in real world usage: what can be a real world situation where you need 10000 lumens for more than 15 seconds but 30 seconds is enough?

anybody know what is the amp draw this two light?

The 53A goes just over 30s on turbo before stepping down using a new 30T. You can re enable turbo repeatedly afterwards but it always steps down. 3 xhp50.2s is simply too hot for most lights outside of a gigathrower form factor.

I’ve been tempted by the 21PRO but am weary about quality control from what I’ve read about the FW3A series and also my HL03’s flaw. Anduril is really tempting though but I think I’ll hold off.

I just ordered this light (FW21 Pro)! I’m interested in your guys feedback as this will be my first 21700 light. (been using 18650 lights for years, started with a SSC P7)

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Lumintop FW21 Pro 3x XHP50.2 10000Lumen vs Nightwatch NSX3 NS53A 3xXHP50.2 6500k 9900 Lumen

Is the 15% discount code good for the new NXS3 (near) 10k version?

Got the FW21 Pro with the offered Samsung cell.

Works well and the build seems solid.
The light could use a better tint.
The clips hoop slightly protrudes, and is a tad bit larger than the tail caps diameter.
It gets hot. Use 100% sparingly. I'll get some beam shots this week.

yeah the light does like the 10k lumens for like a second then drops faster in the blink of an eye the lumens… having the xhp50 in 5000k tint or so would be nice or even warmer.

Thank you so much for taking the time to do this comparison, it was really helpful. It showed that the lights were essentially identical in initial output and the decision comes down more to UI or preferred host. I ended up going with the Nightwatch NSX3 due to the decent body’s design for heat dispersion. You are much appreciated good sir.8

Just got my FW21 Pro in the mail today. The dang thing gets super hot. For longevity, I calibrated the sensor and set the limit to 40C which is pretty close to getting too hot to hold for me.
It smokes a black paper plate in 2 secs lol. I wonder if it can catch it on fire!

In my VERY unscientific ceiling bounce test and using a LUX meter app (phone placed on floor), it goes up to 1200 lux compared to my Convoy M3’s ~650 lux. Then it throttles to about 150 lux lol. (Please note that these are relative tests and the lux numbers are in no way comparable to other peoples results!)

This is with using a P42a Molicell 21700.

What a strange race we are facing in 2019/2020….the more lumens possible in a lowest possible time ?
It started with imalent flashlights 3 years ago…

i would like to see a small light that can sustain 3000lm for 10min.

Would be kind of hard in a small body.
You need mass for heat-sinking.

Now if I needed 10k lumens for work, I would be looking at 2x, 3x 4x 21700 Lights that are big and heavy.

I know I know…we are talking about 80 to 150w and even more than 200w for 10klumens ! Cpu cooler are much more bigger and feature fan designs…

I was talking with Dale from Haikelite about fan cooling for the big 3xxhp70.2 lights

But considering the current thread I would like to see the small light with exact time specs. For example a 3000lm light should sustain it for 5min mini. Like tig welder are rated with running coefficients…

The decent/honest manufacturers often list a estimated time until stepdown + output after stepdown on their FL1 runtime charts. Even the FL1 standard has it’s own issues though, like how Maglite games it to massively inflate their runtime numbers without making any mention of the huge stepdowns.




I found the answer: not the FW21 PRO. Cooked the domes and phosphor off
I was tempted before, but no longer

Oh wow!!!
FYI 1st thing I did after turning the light on was configure the Thermal limit and calibrate the temp sensors. Set the limit to 40C. By default it’s set to 45 I think and it thought the ambient temp was sub 15C (room temp around 22C).
I could see how it could cook itself at default settings… Good thing I like messing with settings lol

Also, another thing I noticed is that the temp sensor doesn’t update the readings often enough for this light.
Toykeeper mentioned that it updates every 6-7 seconds, which is fine for running Turbo from a “cold” start. But if you turn it back to turbo after it steps down, it will stay at turbo for at least 6-7 seconds before it starts stepping down gradually again, rinse repeat and now you have a dead light…

This light needs a temp sensor that is more “realtime” that updates every second and more aggressively steps down depending on how much over the limit it is

I wonder where the BLF Q8 lands for sustained output (and then, modded with 50.2s, what it can sustain)? Or lights like Convoy L6/Sofirn SP70