ENEDED

Im not sure. I’m still thinking about the logistics fo heat sinking since the MCPCB would then be hanging inside the pill below the emittier plate. I guess there is a possibility, I’m still chewing on it. I’d have to design a separate platform for the noctigon to sit on and still be able to transfer the heat out through the body. Everything I’ve come up with so far would require thermal epoxy. I’ve experienced many fails with epoxy solutions already.

The emitter plate is huge, I mean big, and if you stay with a single 3V emitter, there's not a ton of heat there. The shelf is so wide, you might be able to go deep with the a heat sink directly under the MCPCB and still have room for a piggyback driver off to the side. There's a bunch of options. I'd look at securing it better to the body on the side - you have a lot of room there, specially on the top side around the reflector.

Normally I’d jump on it and figure out things as I go, but since mounting an optic inside a reflector might be a bad idea from the get go, I have to think about cost. With the Canadian dollar in the tank, I’d have to calculate close to an extra 40¢ On the US$. Suddenly it’s getting a bit pricey.

Hi, how do you center emitters in the Boss for the best throw? And how “deep” should a led be in the reflector? thanks!

We call it “focusing”, and varies quite a bit based on the LED you are using - XM-L2, XP-L, XP-L HI, XP-G2, etc. Then de-domed changes things too. Right now, the BOSS1 I have needs to come out of the reflector a little for the best throw. I’m using a dedomed XP-L.

the cell 26650 are all in parallel right? because the working voltage is between 3v… has anyone measure the runtime? with the standard drive…

Yes, parallel. No, didn’t measure runtime but you can do the math. If you use four 4500 mAh BASEN’s, 18000 mAh total, and pull 3.5A, as I measured stock, that’s over 5 hours, but actual runtime will be higher, probably 6-7 hours because as the cells deplete, the amps drawn (and output) drops.

It’s a light made for throw and long runtimes.

awesome……

Minor update for 2017 version. New version now includes sling strap and tripod mounting hole.

And also upgraded CaroNite 26650 5600S from one of the sellers. Tempted to buy one more for mod, but I got 2 already.

This light is so heavy with 4 cells loaded; not suitable for EDC, even mid-long hour carrying :smiley:

In this 2017 revamp, did they make the threading better?

Vinh sent me a Modded Boss1. It has his programmable driver and does 570 kcd and 1400 lumens otf. Im going to order a UCLp lens for it so maybe ill hit 600kcd. That would be plenty.

I really like this light, Its so obnoxiously heavy its hilarious. I use keeppower 5200mah for this light so 20,800 mah lol. I actually perfer the shallower wider reflector as it makes the spill wide and the hotspot neater and sharper and larger.

These are my measurements taken at 10m. beamshot below is in order of list

1)Deft edc X Enthusiast 510 kcd(my card says 404kcd but I always measure much higher no mater how well I calibrate. I think Michel measures very conservatively
2)M25c2vnT (618kcd)
3)Bossvn 570kcd
4)K50v3vn (has xhp35) 535kcd

Im on cpf more then on here. Im on so many forums some just get more love then others lol. But I just love how far TOM E drives these leds. Never knew 1900 lumens was possible with xlm2 u4.

Im sure Vinh could do the same but I think he tries to strike a balance between power and reliability as he sells a lot of lights so this bossvn is kept to a still respectable 1400 lumens.

I hit over 700 kcd when playing with focusing of the dedomed XPL, but I know vinh can do focusing better than I can. I had it out on the 4th - it's impressive.

still those short threads?
and I would not ant t with those brass nipples instead of a ring
still a pass… (and I love lights like this, Tom lets do a Q10 :smiley: making the wrongs in the Boss right LOL)

Wow thats amazing. I just inquired about an 89.80mm UCLp lens so that should help a little.

Ok, i received this true beast thrower and tried a easy emitter swop with XhpV5 and XhpHi with aluminium pcb with custom machined aluminium spacer but the current is too high on high mode resulting in blue light. On the med and low mod the XplHi beam is slighly narrower but its also dimmer than the stock xml2.

With the XplHi emmitters , the high current requires massive heatsinking like a machine out 75mm copper plate for or some resistor mod to lower the current on high to be workable. The narrower beam profile on the 90mm reflector is crossed and not very nice like the stock xml2. i think the only way to easy mod this light is with a dedomed high bin xml2 u4 with copper pcb which im getting soon.

I have a mini lathe and did considered machining copper plate for this light but the cost of machining the copper plate is substantial and might not be worth the work after seeing the poor beam profile with the XplHi on med and low mode.

A better but more complicated mod idea is with the XHP35Hi which requires 2s2p battery mod.

A even better , completely doable but pricier mod idea is with 4x xhp35 with 4 40mm reflector on 4 KD single cell 1amp xhp35 driver linked individually to the 4 isolated tab of the driver for each battery. This is completely doable due to the large 90mm internal head space and would result in a 6000lumens 4amp 4xhp35Hi monster thrower that makes nitecore Tm16gt a baby.

Uhhh - you really don't want to fool around with aluminum non-DTP MCPCB's - you will get the blues every time, if not burning out the LED completely. Is that what you are using? Copper DTP MCPCB's is the only option, I do mean only... Noctigon, SinkPAD, TPAD, etc...

You don't need crazy heat sinking if you do the MCPCB right -- DTP & copper.

Mmm fellows, you may want to check this out:

Related thread: 4x quad XP footprint copper DTP stars my dears! :-)

Nice behemoth, LoL!

Hope this is of help. :-)

Cheers ^:)

Uhh, 4X quads are totally useless for a SMO thrower. ???

That's some crazy boards this seller has... Optics is an issue, potential big issue...

Oooo, Dtp-direct thermal path . im still stuck in the aluminium pcb era and this new copper dtp pcb is new to me.Thanks for the update. :+1:

Btw, I find removing the handle from the boss1 makes it a very cute monster. Very wholesome feel and full of flasholic satisfaction to hold this hefty beast in one hand without its handle sticking out. Its rare to come across such an affordable yet very high quality light with massive reflector throw and unlimited 4x 26650power. :+1: