So it’s current controlled for the lower modes with 7135 chips, meaning the 9 emitters are parallel? And do you know what the max current controlled output is for the 219B? Awesome you’re working on this project! :sunglasses:
Edit: Ugh, of course it’s 9 x parallel; it’s FET with 3 cells parallel. And max current controlled output is something like ~1500 lumens I think.
Knowing the driver was designed by Lexel, I’ll probably buy more later! Can’t wait to receive mine!
Any chance of a clear anodized version?
Nice work Lexel!!!
What are the specs of the NW led? Bin and tint
Now I gotta save money to buy this beauty :heart_eyes: 
So what is the difference between the 7050 aluminum on this light vs other lights?
this would be my choice as well. At first look at the original post I thought the one picture was of a clear anodized one!
Also given that usually a larger amount of lower driven LEDs are more efficient than one single highly driven LED, does anybody have any estimates on heat management or runtimes on constant current for the Nichias around 1000 lumen or 2000 lumen?
You point to CREE XPL hi nw? It is XPL Hi V2 3A
This made me do a calculation.
The Nichia’s are run at close to 700 led-lumen at max each to reach 5000 OTF lumen, and TA’s test of this very led shows that 700 lumen is right at the maximum that this led can put out. So if the 5000 lumen is real, this light seems to stress these leds to the max and they are not used very efficiently.
That would make 6000’ish lumen, is there really a 20% loss with the optics?
I e-mailed them yesterday, got this reply this morning:
Hello patrick
thanks for your email. and we will do a promotion in Budget Light Forum next week
Thanks
jack zhang
TA’s old calibration was measuring too high so you need to apply a correction factor of 0.70. Instead of 700 lumens, it will be 490 lumens.
I haven’t heard of any 219b flashlights making anywhere near 5,000 OTF lumens. So if this really does get 5,000 lumens with 9080 emitters like in the manufacturer’s test report, it is pretty darn incredible.
Oh no I ordered too early then!
Ordered me a NW XPLHi Champagne - love that tint - have it in a M34 and imo just the right tint.
XPL Hi = more lumen, more efficiency, more throw, and if you want to be a tint snob you could add something like this or this to the front lens and or a diffuser.
I can't look passed the name, in Dutch ROT isn't a very positive word, LOL. But I kinda like this light. I would have hoped to have the bezel a little wider.. At least as wide as the part below it, or wider..
But it won’t roll off the table being square and has more mass/fins for cooling
Yup. I like this light’s anti-roll design.
The anti-roll design is very thoughtful.
I wonder if it is hard to swap emitters on this thing incase someone wants to try say LH351D 90CRI.