ENEDED

Thanks CWK, interesting news. The TK61 throw #'s are a bit all over the place, from maybe 550 kcd, 620 kcd, to as high as 740 kcd from vinh here. Hard to say what can be accomplished with this, but has many possibilities.

How about shaved XHP70? or maybe even XHP35-HI as an alternative to XPL-HI, for thighter beam!

I am using iPhone and could not find the appropriate link to set into this forum, but you can see some of the BOSS1 photos here:
BOSS1

Good pics, thanks. Any chance it could take any pictures with other common lights to compare size?

Nice collection of lights wkchin. B-)

Inset 20 mm for the star looks like, almost flat reflector - slight flare up at the hole. Looks like that big pill top may be a screw-in, like a COURUI.

That driver does not inspire confidence!
Presumably, center point contact on a driver pcb is if you want to use one 26650 cell in the center of the battery tube which is a bit strange since all cell are in parallel so you could use 1 or 2 or 3 or 4 cells anyway…

Driver is pretty simplistic - those 0 resistors are basically jumpers, so no restrictions coming out of the two FET's. Makes you wonder why there's no decent amps, if output is 700-800 lumens.

+1 nice taste in throwers :beer:

I like your throwers!

That driver was obviously designed to be simply a contact board for us to do driver mods. :slight_smile:

Palight has given us a blank canvas to work on



Those 2 little mosfets should deliver more power than that, I’ve used them on 10mm drivers and had at least 3A even from a 10440 cell, up to 5A from an 18650…. and that’s just one of those FET’s. Surely we can easily piggyback a better driver onto that big board and get some serious output out of the thing… Should be able to get a real 1600 lumens from an XP-L pretty easily. Even a de-domed XP-G2 in the 5-5.5A range should rock in that big reflector. Hate seeing that massive flat bottom though. Sure poses issues, surmountable but unnecessary if it was made a little different to begin with.

Could the low current be related to the high vf of xml2 ?

When the higher Vf XM-L2’s first came out, everyone was agast at the lower current that was max. Then we discovered that while the current indeed was lower, the output was almost the same or… in some cases… actually higher!

I’ve seen an XM-L2 U4 1C do 1811 lumens in an Eagle Eye X6. Tom saw 1900 before I think. These emitters are capable of making some great output, and their new efficiency allows them to do so with lower amp draw, saving your cells while still delivering.

This big hoss of a light surely can do more in the output department. And surely WILL do more, in the hands of some of the BLF members… Round 1, Tom E. :wink:

Maybe machine a collar and use the KD reflector like that TK61 mod…

Thanks for the explanation Dale.

Alex - I was hoping this reflector would work better with emitters larger than a dedomed xpg. The KD reflector works awesome with smaller dies but in my opinion has a sliding scale of awesomeness related to the size of die (e.g. big die = not awesome).

wkhchin81

thanks! could you also measure the size of the reflector?

I wonder what a dedomed Nichia 219C would be like in this beast?

Many are looking forward to buy something “big”.
(additional comparison and measurement photos: BOSS1 , cheers :slight_smile: )
See the dimensions below first before deciding to buy one:
Head OD: 100mm
Glass Dia x Thk: 90x2mm
Reflector Biggest OD: 89.7mm
Biggest ID: 85 mm (TK61 only 81+mm, sorry for wrong info initially)
Height: ~58.6mm
Base Diameter: 34mm
Protruded area: 11.1mm OD x 0.7mm height
LED ID hole: ~9mm
Driver Chamber Height: ~10mm
LED Base Plate/Pill: 4mm with 1mm depth (therefore only 3mm, see photos)
Spring Height: ~16.6mm (Wire Dia: 0.7mm)

Some comments:

  1. The Glass is too thin, once removed, it may be crack when tighten. I heard mine with some scratch sound and edge chip off.
  2. Reflector is smooth compared with TK61’s, hot spot is more even and slightly smaller than TK61’s.
  3. The driver chamber is too shallow for thicker driver.
  4. The Aluminium Pill is just 3mm, the shallow chamber limits additional thickness, but very large diameter may compensate this:).
  5. The diameter of the body is too big (72.5mm) to hold, as my hand is not big enough.
  6. Too heavy, personally prefer TK61.

Thanks for viewing (sorry for messy photos, as I taken them in a small store room).

Many thanks for all the information and the images! H)