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

DarkShot, this aluminum spacer is probably meant for such duties. You could also craft it from copper if able, or something similar. The dimensions can be easily figured out, height is the only measurement which can leave a bit of doubt but this is easily solved making the part a tiny bit taller so you can sand down reduce it if needed later.

Cheers, the issue at hand is those thermal kits are out of stock, and if they were in stock they still wouldn’t work, as I’ll need a single hole for the triple pill I intend on using. If I had some machining tools at my availability this’d be done in short order but I don’t unfortunately.

Thanks for the suggestion though!

Still waiting for the FET switches and den 30A drivers :).

My order arrived yesterday! Had everything arrive extremely well packaged, and everything went together almost without a hitch!

Unfortunately it looks like the RGB LEDs don’t like heat or I otherwise ham handed something, ’cause one of them the red channel no longer works and I managed to kill another one. This was 100% my fault, it arrived perfectly functioning. Time to source some new RGB LEDs!

Additionally, where could I add a bleed resistor to an LD-x4 that I didn’t select as an option to use an illuminated tail cap?

LD-x4 doesn't use resistor for bleeder but small jfet transistor 2SK3796 (you will see 3-pin empty space for it on driver - if you ordered one without bleeder option), parasitic current consumption during driver ON time is significantly lower compared to resistor (1mA vs 6-20mA).

But adding ~300Ohm resistor between driver spring pad and gnd ring would work too.

Any new products coming soon?

When they become ready, you'll see them in store.

Hello Neven, is it possible that you will offer XHP50.2 in 3V variant?
Such as from cutter in around 5000K?

I'm not planning to stock Cree LEDs.

I just built a light using the LD-B4 driver and one of your quad pcbs. I couldn’t find a diagram showing the connections of the socket on the pcb. I had to carefully study the pictures of your example build. Is there no diagram anywhere?

https://led4power.com/download/4621/

I’m talking about the LED PCB. There is no diagram for it.

Edit: see LED4Power answer below

Question: mode advance in the LD-4 drivers is done by a half click, that’s pretty obvious. But is movement in the other direction possible? Eg. by a double click. I can’t find anything about this in the instruction

Double click can be assigned a special function. It’s in the instructions. No reverse

There is no diagram at the moment, for 3x and 4x 32mm mosX boards connections are:

Pin1 - GATE (Pin1 is 1st from the left if you look from pcb center)

Pin2 - TEMP/NTC

Pin3 - MOONLIGHT

For 6x 34mm mosX boards connections are:

Pin1 - GATE (Pin1 is 1st from the left if you look from pcb center)

Pin2 - MOONLIGHT

Pin3 - TEMP/NTC

If customer buys one of these MCPCBs with all options included, I put connector with wires in package, so customer doesn't need to worry about this, he only needs to solder those wires correctly to driver (red-gate,white-temp, blue or yellow-moonlight).

Thanks. I bought the parts used and did actually manage to switch moonlight and temp which means that the overtemp protection doesn’t work correctly. It was easy to fix though.

Here's a German thread on my build.

Clearance sale on some of ALU MCPCBs:

https://led4power.com/?s=clearance+sale&post_type=product

Perfect for ultra-budget builds with LEDs from Arrow that are on clearance sale too:

https://budgetlightforum.com/t/-/56520/14

I build 2x Convoy S2+ few days ago (post in mod thread) but today have time to take more pictures.


Both with l4p mpcb and drivers and with custom retaining ring from kiriba-ru.

The leds are Luxeon V and Nichia 219-b-v1 sw45k 9080. I read that the nichia led become more pink at current higher than 2Amps (1,5Amps now) So, probably change the driver to LD-4 3Amp in the future :wink: