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

uselessuser · October 4, 2021, 2:59pm

Thanks! Yeah, I definitely was unable to get t anything to light up in that configuration.

Scallywag · October 4, 2021, 3:06pm

uselessuser:

djozz:

I’m not sure what is going on with this particular board, but when I have shorts after reflow, I re-heat the board and one by one slide leds off sideways with fine tweezers and then slide them in postion again. That helps removing solder bridges.

I’ve done that, no luck.

djozz:

Edit: if this is a MosX board it is more surprising even: none of the solder pads should be connected to the core, even not the thermal pads. In that case you may have a defective board where somewhere the +pads are connected to the core. Can you see any dents that could have caused that?

They aren’t, they are connected to the + pad. This whole undertaking has been an exercise in frustration, I have no idea why the LEDs don’t work. Looking at it through a magnifying glass I get the impression that the pads for the LEDs don’t align well with the LEDs themselves at all but I don’t have a short between the + and - pad so that’s probably not it either. The website says the boards can be used without the MOSFET but recommends shorting the footprint in that case, but that just creates a short between + and - so I’m not sure what’s up with that.
By now I’ve probably reflowed some of the LEDs 10 or 15 times. These aren’t even reliable anymore. I think I’ll just abandon the project.

Has anyone successfully used one of the 4x4040 mosX boards?

I have one in use. I had to solder LED+ to the pad that the mosfet would be on, iirc.

led4power · December 18, 2021, 5:33pm

Important note to customers:

there is a final extra 10% discount for everything in store (code L4P2021) and it's valid until 29.12.2021.

Currently all items in store are bought and sold over my first smaller company, which I will close on 31.12.2021., and switch my business to 2nd LTD company (which I've used for lager customers and some other work).

Because I cannot mix parts bought over 1st company with stock of 2nd company, everything you see in store except for Osram LEDs is available only until 29.12.2021.

This includes LD-x4 drivers too - so they'll have obsolete/end of life status. I will not make and sell them over my LTD company, maybe if some larger buyer still needs them, 100+pcs will be min. order, but this is also questionable and depends on chips availability.

That also means there will be a gap regarding drivers availability until new driver generation is ready (and that depends a lot on chips availability, which is terrible currently).

So After New Year things that will be available are new 3030,3535,4040 16 and 20mm DTP PCBs (refreshed design), Osram CSLNM1.TG, CSLPM1.TG and CULNM1.TG, and limited qty of Luminus SFT-40.

Over time I'll add some more items in stock.

Good news is that bare LEDs will be available too, and every item will have better, more aggressive price breaks for larger quantity.

Shipping to UK without 135GBP min. order should be available too.

Orders made until 29.12.2021 which contain driver may be shipped with some delay, because I don't have lot of parts for drivers left, so it will take some time (5-7 days) until parts arrive.

Thank you for your support and I wish you happy Holidays and better New Year!

DarkShot · December 21, 2021, 6:28pm

Do you have any remaining 4xV MCPCBs?

I’d like to build a quad Luxeon MZ but see that the 4 emitter + MCPCB combination is out of stock.

led4power · December 22, 2021, 8:14am

https://led4power.com/product/mosled-extreme-mosx-ceramic-insulation-4xv-4040-quad-mcpcb-20mm/

MZ LEDs are sold out.

id30209 · December 22, 2021, 9:20am

Coming home soon and going to check what i still need before the end of the year.

MascaratumB · December 23, 2021, 2:04pm

led4power:

Important note to customers:

there is a final extra 10% discount for everything in store (code L4P2021) and it’s valid until 29.12.2021.

Currently all items in store are bought and sold over my first smaller company, which I will close on 31.12.2021., and switch my business to 2nd LTD company (which I’ve used for lager customers and some other work).

Because I cannot mix parts bought over 1st company with stock of 2nd company, everything you see in store except for Osram LEDs is available only until 29.12.2021.

This includes LD-x4 drivers too - so they’ll have obsolete/end of life status. I will not make and sell them over my LTD company, maybe if some larger buyer still needs them, 100+pcs will be min. order, but this is also questionable and depends on chips availability.

That also means there will be a gap regarding drivers availability until new driver generation is ready (and that depends a lot on chips availability, which is terrible currently).

So After New Year things that will be available are new 3030,3535,4040 16 and 20mm DTP PCBs (refreshed design), Osram CSLNM1.TG, CSLPM1.TG and CULNM1.TG, and limited qty of Luminus SFT-40.

Over time I’ll add some more items in stock.

Good news is that bare LEDs will be available too, and every item will have better, more aggressive price breaks for larger quantity.

Shipping to UK without 135GBP min. order should be available too.

Orders made until 29.12.2021 which contain driver may be shipped with some delay, because I don’t have lot of parts for drivers left, so it will take some time (5-7 days) until parts arrive.

Thank you for your support and I wish you happy Holidays and better New Year!

Order placed

I’ll be looking for some goodies to start the year with some mods

Thanks for the coupon and the materials and I wish you luck in advance for the “new” store I hope we can still buy from it as small customers :innocent: :partying_face:

JaredM · December 23, 2021, 5:11pm

Would it be too much to ask if I suggested that all the out of stock products be removed? Or maybe anything still in stock consolidated into a new category?

Correllux · December 24, 2021, 7:15pm

Happy holidays and a happy New Year to you, Neven!

I don’t need any drivers at the moment but I sure hope you will bring them back sometime in the new company…very much enjoy the ones I have from you! Wish you much success with the new company also and hopefully it will prevent the past headaches with bureaucracy.

led4power · December 25, 2021, 8:19am

Since this final sale will last for just few more days, I'll leave it as is.

luminarium_iaculator · December 26, 2021, 9:38pm

+1 :+1:

I also enjoy your drivers. They are the best and I could easily say they are the beast

led4power · December 30, 2021, 9:01am

Note: shop will be closed in about 12 hours.

1stein · December 30, 2021, 9:05am

Thanks for the info. So you have an idea when drivers availability may be brought back?
I just don’t know how much reserve should I make…

led4power · December 30, 2021, 10:06am

As I said previously, I will not make LD-4 anymore (maybe if there is custom order with larger qty - maybe).

1stein · December 30, 2021, 10:43am

Yes, but I refer to:

Is it totally uknown? Or you set yourself a deadline for acomplishing the new development this way or another?

led4power · December 30, 2021, 4:27pm

It's really hard to tell when new drivers will be available, especially now when chip sourcing is huge problem.

Scallywag · December 30, 2021, 7:56pm

Fair enough. That is the case for a lot of things across many industries

Hoop · December 30, 2021, 9:39pm

The development of the next gen driver has hit a few hiccups along the way, pushing back the projected release date of mid 2019 by just a bit. The development timeline has been reworked, with relativistic dates based on probability metrics within a chaos math framework. The data can be easily understood by the following graphical representation:

JaredM · December 30, 2021, 9:51pm

Thanks Hoop! Clearest answer so far

MtnDon · January 3, 2022, 3:39pm

5 blinks indicates voltage has dropped to 3.0