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

I don't think there is enough interest in 10mm boards,and setup fees are high.

But if you're going to use 10mm pcbs,that means you will use it in small light (AAA/AA), and if that's the case, Luxeon V on 0.8mm FR4 board (OSH park etc.) with thermal vias would work just fine,no need for DTP.

If it was for small light i would bet you can just force it onto 3535 board but some people put 10mm pcb on copper disc to make custom multi emitter pcb

This and other things.

There is not enough of those "some people" to make it affordable. One option is to sand down 16mm pcb.

Hello.
Isn’t possible to buy the LD-B4 but without the CPU?
I’m thinking about modding one of my FL, but I would like to use my own MCU (because of other stuffs) so I just need to “convert” PWM to analogue FET drive.
If I got it right, this is what the SOT-23-5 IC on your driver do.
Or if isn’t possible to buy just these ICs (because I would like also my own PCB with the MCU because of the space so I would use only the IC anyway).

Thank you :slight_smile:

So, you want BOTH a driver without MCU AND a MCU without driver?

No the tailcap on the Manta Ray is not compatible with Convoy threads, since the it’s sized for 26650 batteries. It’s only the bezels that are interchangeable. The MR is pretty hefty and has a lot of meat on it to help with heat sinking as well. When I was drilling the center hole on the shelf I was pleasantly surprised at how long it took me to drill through, the shelf is very thick. I’m a big fan of the host.

In theory it's possible,you need PWM signal from your CPU/MCU, driver will provide constant current,but everything else (modes,LVP,OTP protections,UI...) must be done by your MCU.

I meant switch PCB size and switch hole threads, could you check?

You have some nice products there led4power, will be ordering some soon.

Ordered :stuck_out_tongue:

Added new copper DTP boards:

https://led4power.com/product-category/mcpcbs/copper-dtp/

Price for 16mm DTP pcbs:

1pc - 1,07€

50pcs - 0.95€

100pcs - 0.8€

Price for 20mm DTP pcbs:

1pc - 1,17€

50pcs - 1.0€

100pcs - 0.9€

Price for 20mm 3XP and 4XP DTP pcbs:

1pc - 1,37€

50pcs - 1,2€

100pcs - 1.1€

If you want to buy 50+pcs, please contact me so I can give you coupon code, currently page doesn't automatically calculate discount.

Nope, you got it wrong. I want the driver without MCU (PIC). The IC is the SOT-23-5 chip which “convert” PWM to linear drive.

Yes, that’s exactly what I want :slight_smile:

Ok, I will check tonight after work.

Yep, I definitely read it wrong. :person_facepalming:

Did you maybe check it? I just bought one MR C8.2 host,looks interesting enough for extreme power.

What is currently the best 26650 cell for high discharge (25-40A)?

I wasn’t able to check last night, but I will definitely check today when I get home. As for batteries, I use Liitokala and Shockli. Here are tests of the cells:

I assume the PLB 55A cell, e.g. Keeppower 6.000mAh or Shockli 5.500mAh should be the best high drain cell for 26650 size.

I thought KP wasn’t a high drain cell.

Vapcell/Aspire/iJoy/Golisi 4200-4300
Shockli 5500