Review: NiteCore SensAA

NiteCore SensAA




NiteCore is a flashlight brand used by Sysmax. This light is the AA light in the sens series. The light is has 3 fixed brightness settings and a new innovative method to select brightness. The light is made of aluminum with hard-anodized (Type 3) finish.

All the sense lights:

Mini, CR and AA

My review copy did not include anything, but the light.



The light has a TIR optic, behind a glass lens.



The battery uses a brass insert with the circuit in. The foam provide anti rattle function and mechanical polarity protection.



Both the head and body has some knurling but without any bite in it.



The spring in the tail is a special type, without much movement.



The tail has holes for an O-ring and the light can also stand on the tail.



The user interface uses a tilt sensor, this is used to select between the 3 brightness settings when turning the light on. Holding it horizontal when turning on will give maximum brightness. Pointing slightly down or straight down will select the two other brightness levels. Pointing the light up will enable auto mode, where the light will adjust brightness when direction is changed between vertical and horizontal.
The light uses a slow turn on, i.e. it fades slowly up to the selected level and slowly up/down in auto. Horizontal position does always reach full brightness fast.



Here is all the part the light can be disassembled in without tools.


The new user interface is a interesting innovation, it makes it possible to turn a twisty light on in any brightness setting, turning on/off multiple times is not needed. But the interface is not intuitive, I tried the light on a couple of people and none could figure it out, without help.
Using the light I am not so happy about the slow turn on, except for that the sens interface works fine.



Technical specification and measurements



The light can be used with a AA alkaline battery, a AA NiMH battery or a 14500 LiIon battery. The LiIon battery must be protected and not too long.

Measured size and weight:
Length: 83 mm
Diameter: 17.5 mm to 19.7 mm
Weight: 53 gram with a NiMH (Eneloop) battery

The light uses a Cree XP-G R5 led.



In the above table I have collected all modes, measured at 1.2 volt. All the estimated runtimes are with 2000Ah NiMH battery.
Because my test bench requires the light to be locked in a fixed position, I could not compare the different brightness’s, this is also the reason I only did one voltage sweep.



A voltage sweep at high shows a very good stabilization in the voltage range of a NiMH battery (1 volt to 1.4 volt), but not on a LiIon battery.
With this voltage sweep, it is also obvious that the driver in the AA light is different from the driver in the Mini and CR lights.



On NiMH the light has good stabilization, this can also be seen on the voltage sweep. This gives a nice flat runtime on NiMH. Alkaline cannot keep the voltage high enough very long and LiIon is not stabilized.

There are no flashing modes and the light does not contain any pwm or noise.



Comparison to other Flashlights

4Sevens Qmini AA, NiteCore EZ AA, NiteCore SensAA:


Fenix E15, 4Sevens Qmini 123, NiteCore SensCR:


For the full comparison to other lights with graphs and beamshots see here





Notes

The light was supplied by NiteCore for review.

Thanks for the review!!

Nice light! Very attractive design.

Thanks for your excellent reviews, HKJ! Frontpage’d and Sticky’d.

I love this light with 14500 for EDC. The problem with small 14500 torches is heat build-up. With the SENS you dont have to do any clicking or twisting to drop down the power. Just lower your arm to drop into low and let the light cool, then raise it to ramp back up.

Thanks for review!
What were the other lights with similar auto dimming feature, I remember there were some but cant recall who was the manufacturer?

Maglite made a light with position sensor, but you had to turn the light for adjustment.

There was also somebody that made a light with a photo sensor to adjust the light, I did a reviews of that light.

I thought I wasn’t going to like this light but Ibought one anyway when it first came out and I love it, very useful

Yeah, it seems that its not that bad actually!

HKJ, thanks, but thats not the light I was thinking about, I remember, faintly, that there was some other company making, I think, it could have been headlamp, with either sensor or accelerometer.

How long can it run on a 14500 before it gets damaged?

The beauty of it is, when its in ramping mode, you just lower your arm and it ramps down into low, expending less heat. Just raise your arm to gain high as you need it. It’s easier than thinking about manually switching modes all the time to avoid overheating. You don’t even realize your doing it.

the ramping is nice, but how long can it be kept on high before you ramp it down? just a few seconds? is it just a matter of heat, or will any longer fry its circuits?

It warms up the way you would expect any very small light to on 14500. After a few minutes you can feel it heating up. I don’t like to keep it on high for more than three to five minutes. It runs nicely on 3v AA lithium primaries. I’ve been meaning to test it with some 3.6v AA lithium primaries, but I haven’t gotten around to it yet.
I also have a Sens CR and it gets way hotter, faster than the AA. It also won’t ramp into low with Li ion. The Sens AA ramps very nicely on the Li ion’s.

ive used mine with 14500s with no issues as well as eneloops, alkalines and lithium primaries

very close to the trustfire mini on a 14500. VERY close, and more throw.

No prob with protected 14500?

with protected trustfire flame 14500’s

Nice light, nice review

I want one of these… but…. $$$ is $$$ :frowning:

Can’t really find the estimated lumen output with 14500 li-ion battery, anyone? Brighter than Xeno E03? (520lm with xm-l2)

In Selfbuilts lightbox test on CPF, he got 140lms on one Eneloop, and 370lms with a 14500.

So if you are using this outside at night, on high, if you point it down to look at something on the ground, does it go to low mode??