Osram Oslon Boost HX

Another distributor lists Boost HX on their site…MOQ is 4000 and they have no stock.
https://www.ttiinc.com/content/ttiinc/en/apps/part-detail.html?partsNumber=KW%20CULPM1.TG-Z6RF7-E&mfgShortname=OSR

LED4Power has them in single quantities.

Probably for about five minutes after this comment goes live. I’m half tempted to buy one, but I’d put it in my C8, take some pictures, hate the backscatter from the high CCT, and put the SST-20 back in.

These are Boost HL, not Boost HX. 1mm² die instead of 2mm². Better throw but only marginally for not much more than half output.

Ahh, so it is. I didn’t notice the P vs N in the part number.

Now Vinh has them as well:
https://www.candlepowerforums.com/vb/showthread.php?454513-The-Lounge-2019&p=5352694#post5352694

Ah! So they actually exist now. :smiley:

We need that :+1:

I think Led4Power has them, but his shop is closed until next year iirc

L4P had the Oslon Boost HL notnthe Boost HX.

I’m aware. I believe he has the HX now, after his store closed this year, based on the fact he offered it as a prize in the Old Lumens contest

Is the boost HX just a 4040 version of CSLPM1.TG?

Aka culpm1.tg

Yes. But considering that thermals seriously limit KW CSLPM1.TG - this is likely a significant upgrade.”

Anyone know where to get them? Im aware the cslnm1 and cslpm1 cant take direct drive but anyone think this one will?

Probably still a bad idea.

I think I read somwhere that Vihn has not been able to get the angry blue tint shift with this led? I might be wrong. I’ll try to remember where is saw this.

Linked to a CPF thread recently…
Anyway, strap one to a 30T and I doubt you’ll like it.

That still doesn’t mean direct driving it is a good idea.
It will mainly produce more heat at some point, which is bad for run time and life time of the LED, and cooling can become an issue.
And it’s not as if there aren’t any good FET constant current drivers available.
Convoy has the SST-40 drivers, one does 5000mA and the other does 6000mA, and you can play with the sense resistors if that’s not ideal.
Tests of the Boost HX will determine what’s the best maximum current.

You could look at some data to get an idea what is going on, gives a bit more weight to guesses. If you take the KW CSLPM1-TG as a lower performing Boost HX, I measured its max at 7.5A. Say (this is uncertain of course) that the Boost HX has its max at 10A and the voltage is similar to the KW CSLPM1-TG, at max its voltage is 3.3V. The 30T at 10A is, when it is close to full, 3.9V. That is 0.6V higher, so without any voltage losses in the circuit, the Boost HX would go well over 10A and be seriously overdriven. But place springs, switches, wires and driver circuitry in your electrical path and you get voltage losses, 0.6V is easily lost at 10+ amps.

So, with some assumptions about the Boost HX performance, I think that you can overdrive it but it is a bit of a challenge: the best battery and a low-resistance electrical path.

Oh, that’s more current than i anticipated.
But, i take it you mean 10 Amperes (7.5 A for the KW CSLPM1-TG) is the absolute maximum, and probably only a few % more output than on something like 8 Amperes (say 6 A for the KW CSLPM1-TG)?

But you know i like my LEDs running constant current regulated and the electrical path optimized :slight_smile:

I really like FET diy Djozz style driver(nanjg AK 47 one). This is the thread about mentioned driver: comfychair-inspired quick+cheap+lazy single-sided 17DD FET-driver (poor man's nanjg92)

I produced and potted over 200 of them. Only few failed because of mine soldering mistake so I would say after several years that they have almost 0 failure rate!

I would like that Djozze reinvents mentioned nanjg AK 47 FET Djozz driver but this time with some kind of added resistance so we can safely run that little osrams… Pretty Please Djozz ? :slight_smile: