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

First test: XM-L2 (U4 bin probably) on DTP vs mosX

^ looks like the same performance.

Was it the same led reflowed first on the DTP board and then on the mosX board? What happened at ‘FAIL’ ?

POOF! :smiley:

Two different LEDs from same tape, at 6A they died, I think this was known characteristic of XM-L2 U4 bin,besides extremely high Vf.

Nice, both PCBs are not limiting the performance. The Vfs are super high. They aren’t even good for 5A anymore.

Neven, when you come out with the e-switch driver, will you be able to use push button and e-switch like the LD2?

There will be separated e-sw and t-sw options.

Added soldered Luxeon Vs on various mosX boards, also variants without mosfet/NTC for direct replacement in many lights like Convoy triples and Emisar D4 quad :

https://led4power.com/product-category/leds/

All this good stuff, so little money left after Christmas! :person_facepalming:

I knew I should have waited some more time :person_facepalming: :smiley:

But, I’m happy with my order, received today :wink:
Thanks led4power!! Everything well packed and neat :sunglasses:

I want to make a correction on something I’ve said in the past about thermal protection triggering too soon on my E2L.
Yesterday I rebuilt it with new leds and in the process I noticed because a crumb of dirt got under the mosled pcb during reassembly, the board wasn’t making good thermal contact on the side of the thermistor.
So that explains why thermal protection triggered almost instantly (always less than 15s), and the driver heat management was working as intended all this time :slight_smile: .
After a more careful reassembly it takes something above 30s at 9A before stepdown with factory settings, which is in line with what I had expected in the first place.
I also melted the lighted tailswitch :person_facepalming: , but it’s not the switches fault, I think I might have damaged it during soldering of the spring as it always felt a bit too easy to click, and during a runtime test at 9A it just melted in place :weary:

Wow how’d I miss these? Those silicone pads are sweet! :wink: :+1:

That's actually picture of aluminum spacer in pill, thin silicone pads go on top and bottom of spacer.

That is good example why is good to have temp. sensor on MCPCB instead on driver PCB - in other case driver don't see that something is wrong with PCB contact and LED would probably de-solder itself together with wires which would cause havoc inside of light.

OMTEN switches are unfortunately made from low melting point plastic, so soldering everything around switch is more challenging.

As led4power said, it is an aluminium spacer :wink: I didn’t put the silicone pads as this was for “demonstration” purposes only, when the products arrived!
But this is top notch! Super well made :slight_smile:

BTW, I’m using one of the the Luxeon V (with pebbled TIR lens) …and, honestly, it is the best tint I ever seen!!! Honestly!
So thank you :wink: I guess now I’ll have to try the triple with those leds :person_facepalming: :smiley: :sunglasses:

Oh aluminum spacer?

Can you make silicone pads like this? Never liked hacking up the silicone cubes, never got them to fit precisely. I always thought there had to be something better! :wink:

This is how it should look assembled:

BTW, this only works for LD-A4 driver because mosfet is highest component.

Even better would be if Simon or Kiriba-ru can make solid pill with ~1.2mm depth (LD-A4 has 0.9-1.0mm height), in that case only one silicone sheet would be needed and thermal transfer would be better (but not by much).

When building up a switch assembly, I start with desoldering the switch, when everything is done (spring, bypass etc.) I resolder the switch in place, touching the solder with the iron as short as possible. And still, every third switch that I solder in is destroyed and has to be replaced.

I will probably offer ILC-0 with non-soldered switch for those reasons, so user can solder switch as last step.

Ok.
But I dont see brass reasonable material for pill.
Are you sure that single led is still popular option (in combination with your drivers)?
Another problem, I cant find spare retaining rings anymore. My custom rings are ways more expensive.