ENEDED

For buck, probably Richard's - think it's compact enough to fit - didn't measure it out though, but there are options - lots of space - could even cut out a hole in that huge plate if more space is needed.

That PT16 is pretty nice - looked at it... No time right now though for the BOSS1 - other things goin on. Wish I could get some time off from work, but we are under a lot of pressure.

I have ordered one, cant wait to mod it!

I have some xml-2 U2 1A that have not been used. Will I see more light and throw from a dedomed xml-2 U2 1A on a direct drive than from a dedomed xml-2 U4 1C or is the resistance to high current at cost of throw and output so the kcd would be the same???

The U2 1A vs. U4 1C has a lot of variables. Yes - you can probably get ~7A from a U2 1A vs. 5.4A on a U4 1C but there's diminishing returns on the higher amps. I know Richard reported higher output from U4's vs. U2's for DD FET builds, but that was specifically on SupFire M6 lights (SRK style) with the 3 LED's in parallel.

Actually, for my recent Yezl Y3 mods using U4 1C's w/DD FET drivers, I hit 1900 lumens on 3 different lights which I don't think I ever hit on a U2 1A DD FET. 1700 was about the max, I'm pretty sure.

OK, I choose 18650 as powersources (makes the choice what to buy easier for starters :laughing: and like lights with 26650 size, since a triple AAA would work there as well (makes them good gifts)

This boss really look like a boss and is tempting, but i am not going to get 26650 cells.
With sleeves 18650s fit and 12 AAA as well. Would the output and user time be any good using decent 18650s?
What would be the consequence of using 12 AAAs?

Sure you can use 18650's or AAA triple carriers. AAA's would probably kill high output though, but never seen any attempts to use 4 of them in one light.

well IF it comes to ordering this big guy I will surely pop in 12 AAAs just to see how it works

I am still not certain which emitter is the best choice for this light for a DD without a driver. What should I get if I want to run it without a driver? A dedomed xm-l2 U4 1C or dedomed xp-l V6 2C?

A dedomed XP-L V6 0D will give you closest tint to CW

I have another question. Is the difference between an overdriven xp-g2 vs xm-l2 worth it? Will the throw increase from roughly 700kcd with a dedomed xm-l2 to 900kcd with a dedomed xp-g2 be worth the additional effort and expenses of a buck driver and modding the battery carrier for 2s2p?

Too bad the pill is so shallow or I would buy the Boss just to build a light that has a fail probability of 98% from the get go. I would do this just to satisfy my own curiosity.

I would use a step bit and expand the hole in the bottom of the reflector to 20mm and flush mount a Carlco triple optic in the bottom for no other reason than to see what would happen.

Not sure what you mean. I measured and posted the pill area is 9.5 mm in height for the cavity - more than enough room to piggyback in a typical FET driver. How much space do you need?

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……