Led4power.com : LD-4 CC linear drivers, ILC-0/1 illuminated tailcaps, optics, MOSX, copper DTP MCPCBs...

So I’m not up to date on the latest emitters, especially non cree emitters. There may be a better option coming soon. Seemed to be the case as I read some of the previous comments a day or two ago. I’m wondering however, if there would be enough interest in a 16mm board for the OSRAM black flat.

Thanks djozz! That was quick, I sent boards 4 days ago.

I will update Q8 PCB listing today.

I will make 16mm OSRAM mosX gen2 PCB (~4times lower thermal resistance compared to mosX), difference in output compared to copper DTP should be ~1.5 - 2% based on some calculations.

Triple/quad? This is the only powerfull led that may help carclo 10mm optics work the way it was developed for.

I have 3XP mosX, it should be good for testing.

BLF Q8 boards in stock:

BLF Q8 4040/5050 DTP PCB

With soldered Luxeon V LEDs:

4x LUXEON V on BLF Q8 DTP PCB

I don't have washers+screws in stock yet, I hope I will have some in a few days.

DIY washer example by djozz:

https://budgetlightforum.com/t/-/48659/121

From now on, shipping calculation is based on weight, over 50€ order registered shipping is available with 2€ discount included. Also, for heavy packages there is Premium packet option available for most EU countries, with good prices.

any idea about the centering rings? which ones should be used? I guess it’s okay with the stock ones but with the hole made a little bigger for the new led

I used a reamer to make the hole in the stock centering rings bigger, it was not fast going because the tiny rings do not provide much grip while the reamer scrapes the inside. Other centering rings that I have in my parts box do not fit the Q8 reflector hole.

Thank you!!

I’ve ordered the mcpcb with the leds :+1:

Got your drivers today.

Thanks :disguised_face: :face_with_monocle:

Regarding Luxeon MZ 5700K 90CRI (equivalent to 9080 Nichia CRI rating) interest, I got some more info from one supplier, the only problem is looong lead time of 13weeks. If lead time is 5-6weeks, I would buy one reel, but ~3months of waiting sounds too long for me. When I asked why lead time is so long, they said Lumileds actually runs production "on-demand", one good thing might be "fresh out of the oven" LEDs with higher that typical flux bin as result, we are in 2018, last datasheet update for MZ is form November 2015(!).

Planned "group buy" price was 5,97€ per piece (that's Mouser's price for 50+ pcs when you add typ. EU VAT of 20%). Regular price will be ~7,50€.

Is there still an interest in this LED with lead time of (up to ) 13 weeks?

In the meantime, I will have 32mm PCBs compatible with 3x and 4x CUTE optics for Eagle Eye X6 in 3535 and 4040 footprint.

Yes, I am interested in 3-4 plus PCB.

Yep,still interested.Busy summer starting,13 weeks is fine by me.

Interested in the MZ 90CRI for Q8 Board.

I would be interested in several Luxeon MZ 500K 90CRI and looking forward to the 32mm PCBs.

Luxeon MZ 500K ? Did he mean 5000K?

I went back but couldn’t find the original post on it.

Corrected, it's 5700K 90CRI 3V variant, tested by koef3 and maukka (measured CRI Ra=95, and R9=89).

Thanks for correcting.

Compared to Luxeon V 4000K you get higher CRI with the MZ, but you give up considerable output and have to deal with the donut hole, (plus at 5700K it’s more CW than NW)

Is that correct or am I missing something?

(Both are 3v and 4040 footprint)

Yes. You get a “snow white” tint. That’s rare. Also, the Vf is super low.

  • MZ has high CRI and it's cool white (which is quite rare combination),
  • Also Vf is lower - good for long lasting and steady/regulated high mode when used with linear drivers,
  • Max "BLF" current ~15-16 Amps and over 2500lm - currently no other 3V LED can do 2000lm+ with 90+CRI
  • Undomed - same effective LES as 4mm^2 LEDs, which means decent throw even with OP reflectors/frosted optics

Only disadvantage is quad die gap, but because emitter is undomed donut hole can be neutralized easier with OP reflectors/frosted optics compared to some domed multi-die LEDs.