The D3AA is slightly thicker, and weighs 67 gm, while the Zebra weighs 63 gm (6% lighter), when both have Eneloop and no clip.
The D3AA has regulated output:
On the Zebra output decreases as the battery drains
The D3AA has a lower Flicker Index than the Zebra:
Tint and Beam comparisons:
D3AA:
SC54c N:
Seeing the tips touching made me feel weird.
That’s a driver at least six years old. There were several updates since then.
thanks for your comment, it made me go look at this more recent runtime chart from TimMc:
otoh, here is the D3AA, regulated at 400+ lumens:
Love the Zebra. So smooth and pocket friendly.
How long was it on sale?
agree
the H model has even nicer hand feel, no sharp corners, as well as being 9 grams lighter than the SC.
clip talk:
On the SC with the clip installed, the tip of the clip sits opposite the switch, which is not very comfortable for me when changing outputs. Removing the clip exposes the sharp corners of the pedestal the screws go into. So in both cases the SC is not as smooth in hand feel as the H model.
D3AA with 519A 3500K is superb
With dome or dedomed?
DeDomed 4500K 519a becomes 3400K, with tint below the BBL… (duv -0.0021 on my D3AA @ 50 lumens on Opple 3)
do you have a Tint DUV reference for the Domed 3500K 519a?
the Domed 4000K 519a in the Zebra has positive DUV of 0.0040 on my Opple.
domed
I can check
I prefer not dedome in this case for not lost floody spectrum
fwiw, in the D3AA the stock optic still diffuses the DeDomed 519a very evenly… It stays floody.
In fact my D3AA w DeDomed 519a is more floody (larger diameter and smoother) than a TS10.
I see, the optic is very floody (not super floody and for me is perfect.
This is what i measured in less than turbo from almost 1 meter
Thank you very much for the measurement, Ive never tried a Domed 3500K 519a.
I see why you like it, I would too, as the tint duv is below the BBL:
But you can’t use it like a cheese grater like you can the D3AA… 
I love my d3aa. But you gotta admit. The zeb is slicker than a butchers willy.
Not really a fair comparison since the d3aa is using li-ion. I wonder how the regulation and efficiency compares with both using eneloop.
here is an eneloop runtime chart for the D3AA
here is a link to the source of that chart, it has additional outputs on Eneloop…
here is another source of D3AA data on Eneloop
I do not have a runtime link for the Zebra SC54c N, it should be longer than the H53Fc N data from this review
The Zebra has much longer runtime than the D3AA, below 10 lumens… thats the Zebra Advantage… the ridiculously long runtimes at low outputs.
The D3AA has much lower Flicker Index than the latest AA Zebra… that was unexpected.
here are some of the other SC54c N Flicker Index results:
The H53Fc N from both 2023 and 2024 have very nice constant lux, like the D3AA. The SC54c N otoh, uses more flicker than any of those.
The 53 series driver has more constant power to the LED, and lower Flicker Index than the 54 series driver
there are tradeoffs:
The AA Zebras definitely has great form factor, and runtime… otoh, the choice of LEDs in the D3AA is far superior. And the D3AA offers a floody beam that is very evenly diffused.
otoh, the Zebra SC54c N beam and Tint is embarrasing, with a greenish yellow corona, and a shadow ring in the spill:
here is the stock D3AA beam by comparison:
