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

Commercial Sellers' Spot
943

Any new products coming soon?

944

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

945

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

946

I'm not planning to stock Cree LEDs.

947

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?

948

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

949

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

950

Edit: see LED4Power answer below

951

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

952

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

953

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).

954

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.

955

Here's a German thread on my build.

956

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

957

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:

958

Thanks for the clearance boards! I just bought a few yesterday. I wish I could have bought more but I’ve been spending a lot on other things already this year. I also bought another Q8 4040/5050 board, and it made me wonder if you ever sold enough to break even on those. You had said before that a lot of people who showed interest never bought any of them, and you were stuck with a lot of unsold boards. I know that was before I had bought any, and I’ve bought a couple of them since then. So, I’m hoping others have stepped up too, and you don’t lose money.

959

I think the 3V XHP50.2 may have spurred some sales. 15K lumen Q8’s

960

Or more… 17000lm

Possibly even more “IF” you buy a bunch of 50.2 3v and cherry pick’em….over 5000lm with out lens.

4800lm with a UCL lens from flashlightlens.com

Wish I had 3 more of these…. :cry:

961

Is the LD A4 enough for the 3V XHP50.2 or should I go with the B4?

962

I haven’t had issues pushing 12A through the A4 in a small host.