congrats, those are nice white LEDs, to me slightly pink compared to daylight.
I use my shaved 5000k LH351d often (shout out to contactcr for the hookup). Good tint for a tasklight, during the day imoā¦
Thanks jon_slider. The tint looks very good, but Iām still not sure if I like it better than my triple shaved 219B sw45k. But if I had to pick, I guess I would go with the Nichia. But then again, the Samsungs are so much brighter! Choices, choicesā¦
We are fortunate that we can enjoy Bothā¦
im polyamorous, but most faithful to sw45k, after dark
the LH351d is more of a daytime dalliance
Today I modded a Sunwayman V10a, to sw45k, using the stock aluminium mcpcb.
It took half a dozen attempts with vise grips and leather wrap, to get the control ring assembly unscrewed.
I kept thinking about giving up, but instead kept putting the light in the sun to warm up again.
Eventually, the glue yielded to firm persuasion, without damage to the light, nor my pride.
The centering is as close to perfect as I have come so far.
The beam is excellent, with almost no dark cross even within very close range. On a white wall I can still find fault with the beam transition from hotspot to spill, but unless Im trying to, I do not notice the artifacts in actual use.
I now have two modded V10a, one w sw45k and the other w 4500k E21a.
fwiw, They have essentially the same output. Using the same battery to compare, the E21a is less than 5% brighter. The sw45k is a much easier mod than the E21a, in terms of centering and beam quality, because the sw45k allows reuse of the stock 12.7mm mcpcb and centering ring, which fit the sw45k very well.
Nice ! Patience pay off . 
Nice job jon_slider! So which V10a do you like better, the sw45k or the 4500k E21a? Or is that like choosing your favorite child? 
Thank you Rdubya18 for the kind words. You are right, I was glad I took my time and did not crush the head tubeā¦
and thank you also NeutralFan
My favorite is the sw45k in the evening (the tint is closer to incandescent), and e21a during the day (the tint is closer to daylight)
because
the sw45k is an easier mod to get a decent beam, and it is not as green as the E21a. Green is relative, another way to say that is the E21a is less pink, hence closer to daylight, which is greener than incandescent.
E21a makes whiter whites, but sw45k makes juicier reds
the E21a mcpcb is NLA, whereas the sw45k is an easy reflow to the stock mcpcb, in these models that were xpg
even in the xpl models, the sw45k is easier to get a good beam, the E21a sits lower, which is not good for the beamā¦ (the LH351d 5000k dogfart is dedomed, which lowered the cct)
output and weight:
the V10a w AA Alkaline weighs 82 grams and makes 65 initial lumens, the same head on a V11r body w 16340 weighs 65 grams and makes 210 lumens at startup
Both of the V10a have firefly lows below 0.01 lumens on my meter
(I can see they are on, but my light meter reads 0.00)
the stock xpg is 10% brighter than the sw45k
form factor:
Im new to AAā¦ it is heavier and longer, easier to hold, though personally, Ive always liked smaller things. For me, the smaller and lighter 16340 body is easier to carry.
UI:
Im very happy to fill an AA niche with a Rotaryā¦ the V10a fits that role nicely.
Beamshots:
all things consideredā¦ the sw45k is the winner!
Does anyone know where I can get spare cree xhp 50.2 reflector spacers for the convoy c8+
Thanks, appreciate it!!
Finally received an order for food grade silicon tubing and installed on the Water cooled MT 35 light.
The workshop is portable as we are still renting a small house.
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The tubing wanted to kink so I made something from .005 thick ss shim to keep it round in the sharp corners.
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After several attempts and failures it finally fit correctly. 
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Iām finished for now until I find the correct SBT90.2 and see if Lexel will make a driver for it. 
Wrapped the battery tube with tennis racket tape for a better grip. Also added a simple switch on the pump.
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Put an SBT90.2 in an emisar D1S. It pulled 20.5A from a VTC5A and I measured 184kcd. A high output thrower in the palm of your hand.
My flashlight mods are pretty boring compared to what most of you guys are doing , but I did modify a slab of steel into these
I sent my Olight Autumn Ti off and had it bead blasted. Hereās the before and after.
Added a few more modded (NovaTac) E-switch tail cap lights to my collectionā¦.
. Gotāem off evil-bay $30 bucks a pieceā¦ dude has 8 more 
. Running one on the Mini 14ā¦.stock 80lm now 500lm nice little CQB light.
congrats
what mods produced that result?
If interested in the option to program those Novatac Spa Defense models (they come set up as 120T, but can be changed to 120P configuration), there is info in this thread.
And if you want a Titanium bezel, they are available from RPM (guessing you can make your own too).
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my latest mod cut the output in half, XP-L to 3000k 219b in a Thrunite T10t (in the middle).
pic is a link to teardown
What are ātheseā?
Fidget Spinners?
Pocket Toys for kids?
Desk Sculptures?
Those are tools for a lathe and milling machine . I am practicing to get good enough to make flashlights , for myself . Canāt seem to get making the small , fine threads I want yet . Iām getting there slowly .
I have found they use 2 different drivers/pillsā¦.
This one/style will get you 500+ (580 tested) lumens
The other style just over 200lms using a 16340 or18350ā¦.I know the 250 click trick alsoā¦
. The stock LED is a real POSā¦
