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

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led4power
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Chatika vas Paus wrote:
And when the spacers for c8 i x6 will be available?

I will put spacers this weekend, I'm busy more than usual, so there is delay for some stuff.

Niko
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Is there any chance to have distance ring for standard reflectors and this new osram?

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I don't think there is one, probably simplest solution is to rotate 3535/XP centering ring.

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Just ordered 3 of them Smile

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Apart from the LD4A, are there any alternative 2S (buck) drivers for tail clickies that would be appropriate for the new Osram-LED? So far, this one here looks okay but it cannot deliver the required 5 amps of current.

http://kaidomain.com/Flashlight-DIY-and-Tools/Circuit-Board-Driver-Board/S025382-FX1-20mm-3V-8_4V-2_5A-1-cell-or-2-cells-2-Group-of-3-Mode-and-5-Mode-Driver-Circuit-Board

The best would be a buck driver (2.9V - 8.4V), e.g. in a Convoy L2 (short and long tube) running at full power over the entire voltage curve.

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MTN buck driver. But it’s out of stock…

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Agro wrote:
MTN buck driver. But it's out of stock...

I'm not sure if this one is for tail clicky lights or e-switch lights. It's also quite expensive to get these things from the US to Germany (shipping and hassle with customs).

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Contact to your neighbour Lexel Wink

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Lux-Perpetua wrote:

Apart from the LD4A, are there any alternative 2S (buck) drivers for tail clickies that would be appropriate for the new Osram-LED? So far, this one here looks okay but it cannot deliver the required 5 amps of current.


http://kaidomain.com/Flashlight-DIY-and-Tools/Circuit-Board-Driver-Board/S025382-FX1-20mm-3V-8_4V-2_5A-1-cell-or-2-cells-2-Group-of-3-Mode-and-5-Mode-Driver-Circuit-Board


The best would be a buck driver (2.9V – 8.4V), e.g. in a Convoy L2 (short and long tube) running at full power over the entire voltage curve.

This type of driver is rare as a spare part. It’s probably easier if you just buy a used 2S light with buck driver (maybe a Fenix tk-35) and switch out the sense resistor to get a higher current.

For continuous operation I would go with 4A. I had problems after a while when driving a Black Flat at 4.5A for longer periods of time in a large host with very solid heatsinking.

The FX-35 driver in the Convoy L6 is a 5A 2S buck driver that’s also very, very cheap. I don’t know how well it works with 3V LEDs though. Normally it shouldn’t be a problem. It can be bought as a spare part from Convoy.

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Lux-Perpetua wrote:

Apart from the LD4A, are there any alternative 2S (buck) drivers for tail clickies that would be appropriate for the new Osram-LED? So far, this one here looks okay but it cannot deliver the required 5 amps of current.


http://kaidomain.com/Flashlight-DIY-and-Tools/Circuit-Board-Driver-Board/S025382-FX1-20mm-3V-8_4V-2_5A-1-cell-or-2-cells-2-Group-of-3-Mode-and-5-Mode-Driver-Circuit-Board


The best would be a buck driver (2.9V – 8.4V), e.g. in a Convoy L2 (short and long tube) running at full power over the entire voltage curve.


Look in the Convoy store on AliExpress.
There is a 3 mode buck driver there, and could well be resistor modded without heat problems to 4 – 4.5 Amperes.
It is a double PCB diver, but no parts on the bottom PCB.
I think it’s around $ 6.

Q

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Complex little driver! I just put a 6A LD-A4 in an Eagle Eye X6 host that came in today. I soldered two 20mm copper boards together for height, used a 35mm TIR with a deep narrow “cup” over an XP-L HI and connected these with 20 Ga Turnigy leads. Set up for 5A, with 4 levels and moon mode engaged it works pretty nicely.

The large TIR will show it as unique, the LD-A4 guarantee’s it. Wink

Dale

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DB Custom wrote:
Complex little driver! I just put a 6A LD-A4 in an Eagle Eye X6 host that came in today. I soldered two 20mm copper boards together for height, used a 35mm TIR with a deep narrow “cup” over an XP-L HI and connected these with 20 Ga Turnigy leads. Set up for 5A, with 4 levels and moon mode engaged it works pretty nicely.

The large TIR will show it as unique, the LD-A4 guarantee’s it. Wink

Where did you buy the TIR for X6? can you give the link please? Thanks Dale.

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I honestly have no idea. It was in my kit, appears to be new, was in the black plastic holder and I had to remove it to fit into the bezel of the X6 which was a little tricky. Works pretty neat…

Dale

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DB Custom wrote:
I honestly have no idea. It was in my kit,

Was it from Justin?

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

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I have bins and bins of bits from Justin, as much or more than what I already had of my own. His stuff and my stuff together makes for a LOT of stuff! I can’t remember my own purchases, still finding things in his stuff that I didn’t know I had.

Y’all just can’t know, it’s like he’s here with me all the time. Sad

Bittersweet, at times. Uplifting in other moments. And so it goes…

Dale

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Hahaahaaa thanks anyway Dale. Wonder if it’s one of the Kathod optics or not…

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DB Custom wrote:
I honestly have no idea. It was in my kit, appears to be new, was in the black plastic holder and I had to remove it to fit into the bezel of the X6 which was a little tricky. Works pretty neat…

Straight, no spacer?

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Its taken me awhile to remember where I used a similar optic. Justin sent me the optic. Cant remember the diameter but thought you may have used one in your mod.

http://budgetlightforum.com/node/30545

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.

 

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I think that optic might be Ledil Iris, if it’s ~38mm. Doesn’t look like Khatod PL1672.

Edit: measured actual Ledil Iris optic at 35.0mm. 38mm includes the holder diameter.

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I received the KW CSLNM1.TG leds today. I will do an output test one of these days (if maukka or Koef3 do not beat me to that Smile ), but for now I measured tint at 0 degrees, 30 degrees, 60 degrees.

0 degrees: 6100K on top of BBL, CRI 68
30degrees: 5800K creeping up above BBL, CRI 67
60degrees: 5300K going further up, CRI 65


(note to self: clean stereo microscope internal optics)

link to djozz tests 

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WAIT! Dots? Are these some kinda micro-COB emitters or something? Won’t those tiny dark spots make it challenging to get max luminance in a thrower?

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DavidEF wrote:
WAIT! Dots? Are these some kinda micro-COB emitters or something? Won’t those tiny dark spots make it challenging to get max luminance in a thrower?

Same as the black flat, not any significant variation when on high power.

Completely invisible after all the imperfections on optics.
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Enderman wrote:
DavidEF wrote:
WAIT! Dots? Are these some kinda micro-COB emitters or something? Won’t those tiny dark spots make it challenging to get max luminance in a thrower?

Same as the black flat, not any significant variation when on high power.

Completely invisible after all the imperfections on optics.

Thanks Enderman!

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You’re welcome Smile

The “white flat” looks so pretty Smile

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Hoop wrote:
I think that optic might be Ledil Iris, if it’s ~38mm. Doesn’t look like Khatod PL1672.

Edit: measured actual Ledil Iris optic at 35.0mm. 38mm includes the holder diameter.

Thanks Hoop, nice info.

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Can’t wait to get mines !

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I forgot to put my old test results:

 

I calculated/estimated lumens from my lux numbers and datasheet bin specification.

Yellow marked lumens calculation are based on old black flat measurements at 1A as reference (made by koef3 I think), non-marked lumens are based on ~middle of bin lumen number at 1A from datasheet (330lm, actual middle is 335lm).

 

 

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Using yellow for calculations….
If this emitter really has 1.0609 mm² and 952 lm we’re at 285 cd/mm².
Note that according to package drawing in the datasheet this LED is 1.0609 mm² minus rounded corners.
Also note that the Blackie HWQP while nominally 1.0609 mm² minus cut corner was measured at 1.12 mm².
I tried to measure the size based on djozz photo, but haven’t really arrived at satisfactory numbers…

Assuming that it actually is 1.0609 mm² it is much more efficient than the previous generation (in terms on intensity vs. efficacy). I’m really anxious to see a Koef3 test where I can compare it with the competitors directly…

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That’s what I’m seeing, note that I’m far from fully trusting the chart.

Interesting point:
I still think there’s something that we don’t understand about Synios. If we add it to the chart with intensity that can be calculated for a Lambertian 0.503 mm² emitter, it looks like this:

Likely coincidence though.

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