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

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Lux-Perpetua
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You are right. I must have mistaken those 2.4A with the maximum output of the Nichia 219C and I was probably totally wrong about the sweet spot. Sorry for that and thank you for your suggestions that I will follow. Smile

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Hi Led4Power,
The spacer you have recommended would only fit for single LEDs but not for Triple or Quad optics as the wires need to go through the centre hole of the MCPCB. The spacer however has holes at the outer rim, so it won’t work this way. Would it be sufficient if the MOSFET of the LD4A is the only part that has contact to the flashlight’s head?

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Yes, only mosfet generates heat.

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Thank you Neven! I’ll check if the spacer can be modified for the right wiring alignment in the S41. Otherwise these so called silicone rubber cubes might be helpful for thermal conductivity from the mosfet to the flashlight’s head.

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LH351D 4000K 90CRI in stock(no pics currently):

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

Within 2weeks 3xp and 4xp copper DTP boards will be in stock,together with mosX2 cute-3,cute-4,angie-4,anna-6XP,  so I'll add those later.

 

djozz
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Nice additions!

Will there be a DTP board for the Anna-7XP at some point?, or did you mean to say that you already have the board (and the optic?)

link to djozz tests 

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led4power
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There will be ANNA-6XP (and XV of course), but in mosX2 version, as good as DTP.

I bought 7x optics before I made design, later I found 7x is too problematic because spacers for Convoy C8 would be too complicated, so board will be 6x, 7x optics still fits anyway.

contactcr
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did you make any with 4040 footprint?

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led4power wrote:

LH351D 4000K 90CRI in stock(no pics currently):


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


Within 2weeks 3xp and 4xp copper DTP boards will be in stock,together with mosX2 cute-3,cute-4,angie-4,anna-6XP,  so I’ll add those later.


 

Are you going to sell the 5.000K CRI70 or CRI90, too?

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contactcr wrote:
did you make any with 4040 footprint?

Of course, cute-3, cute-4, angie-4 will be 31.4mm in diameter and come in 4040 or 3535 footprint; same for anna-6x optics (34mm in diameter).

led4power
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FlashTom wrote:

 Are you going to sell the 5.000K CRI70 or CRI90, too?

 

70CRI Luxeon V has better performance, so I don't think I will stock 70CRI Samsung versions soon. Buying full reels of each variant is too big investment for me right now, so currently I will stock only most interesting LEDs .

alberto7
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Are you going to sell spacers for convoy c8 cute-3,cute-4,angie-4,anna-6XP ?

led4power
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There will be cute-3/4 and angie spacers for EE X6, anna spacer for C8. I don't plan to have C8 cute,angie spacers for now, unless there is enough interest, just don't see any advantage when Sofirn C8F triple is available.

Anna-6 has similar TIR size like angie, so throw would be similar with 2 LEDs more, and 50% more lumens.

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Makes sense, good work!

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Speaking of the Sofirn C8F, have you considered doing a 4040 MCPCB for them?

This non-political signature is not non-political.

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Yes, but in next batch, adding more designs in one order is something that manufacturers hate,and they charge large fee for every additional design.

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Would anyone be interested in Samsung LH351C 5000K 70CRI LED at price of 0.7€/pc?

Manufacturer number is SPHWHTL3D50CE4RTQF, flux bin is highest QF bin(310-370lm @700mA,Tj=85C).

This LED is interesting not just because of low price, but because die size is smaller than 4mm2 LEDs like XP-L,LH351D etc. which means narrower beam when used with 3x,4x optics, while lumen output looks fairly impressive, at least up to "stock maximum" of 2A.

 

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I guess a test would be handy….

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I’m a high CRI fan so a 80 or 90CRI version of the LH351C would interest me more, but it is nice if we have a convenient source for the LH351C which has good specifications! That said, I would like to see it tested and perform well in practice to become really interested.

link to djozz tests 

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I think the manta ray c8.2 host that uses a 26650 cell will work nicely for the ANNA 7x optics. The head size is the same as a convoy c8 and it might be easier to make a spacer for the manta ray than the convoy. It will definitely improve run times with a 26650 cell over a 18650, but probably not as popular.

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I’m sorry if this has ever asked before, how does the mode/UI of the LD-x4 works? Any diagram or mode list would be helpful. Thanks.

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MRsDNF
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I received this led from you today thanks.

https://led4power.com/product/luxeon-ir-850nm-90deg-led-mosled-extreme-m...

Is there anywhere I can safely drill two holes in the MCPCB (probably the wrong term here Smile ) to screw this to the pill? The pill itself is only about 17mm in diameter in the driver area. The pill itself is a modified B158 item.

My current and or voltage measurements are only relevent to anything that I measure.

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Bacuse most of surface is covered with copper top layer (it's visible in pictures),drilling holes is too risky. Even sanding it down to 17mm is problematic,but in theory it can be done, dielectric layer is very thin,so risk of short is bigger.

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Thanks for the response led4power. Plan bit is then.

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

djozz said "it came with chinese lettering that is chinese to me".

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

contactcr
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any word on new products? new mcpcbs and stuff?

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From when can you buy the Luxeon V again without mcpcb ?

led4power
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contactcr wrote:
any word on new products? new mcpcbs and stuff?

 

New stuff just came today:

16mm 3535 (XP) Cu DTP

 

20mm 5050 (XM) Cu DTP

 

20mm triple 3XP Cu DTP

 

20mm quad 4XP Cu DTP

 

All Cu DTP boards have 1.5mm thickness,70um copper layer,gold plated top surface,nickel plated bottom surface and pads for 0402 NTC thermistor as temp. sensor.

 

 

 

31.4mm mosX 3x 3535 and 3x 4040 for CUTE-3

 

31.4mm mosX 4x 3535 and 4x 4040 for CUTE-4

 

31.4mm mosX 4x 3535 and 4x 4040 for ANGIE

 

34mm mosX 6x 3535 and 6x 4040 for ANNA

 

31.4mm mosX boards are compatible to Eagle Eye X6 and fit without PCB drilling and sanding (except small edges from V-cut). Spacer is required of course.

34mm mosX boards are designed for use in Convoy C8 host with 6x or 7x ANNA optics (in case of 7x ANNA central tir is not used). Spacer is required of course.

First fit-test pictures:

 

led4power
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deus1ex wrote:
From when can you buy the Luxeon V again without mcpcb ?

 

I assumed no one would want bare Luxeons after I got PCBs,because I'm the only one who has 4040 DTP boards in stock.

Anyway, just relisted bare Luxeon V again.

 

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I will put some pcbs in my store tomorrow,

prices for Cu DTP boards will be:

16mm (single led) - 1,07€/pc

20mm (single led) - 1,17€/pc

20mm 3XP,4XP    - 1,37€/pc

Please contact me over store contact form or here on PM for higher quantity discounts.

 

 

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