Kills XP-G2 in throw, while having 1500lm+ output, which is great for factory undomed 2mm2 LED with pure white tint. Vf is ridiculously low, 3V@3A,3.13V@5A,3.3V@8,5A.
The 3rd best bin this time.
Can’t wait for more precise results to know what the 1500+ actually is. Q8WP was just as throwy as Black Flat. This one would need about 1900 to compete with White Flat.
That Vf is truly extreme.
Thanks for the answer mate! My suspicions were correct! I will probably get more but to use with RC switches!
About this, and sorry for the dumb question, does it mean that using this led above 3A will not produce a) so much heat and b) so much battery drain?
I am planning to use one in a 16340 flashlight with a LD-A4 driver, but I’d like to know if it will be better to use it with a 2A-3A or 4A-6A driver!
With a linear driver like LD-A4 Vf doesn’t affect heat/battery drain but only how long will it run before output starts dropping. With a buck driver it would be more efficient.
Thanks for the answer Agro! Getting a buck driver with a nice UI as the L4P drivers is something I don’t see as possible currently, so…maybe I should stick withe 3A driver to avoid major drops. I believe this LED will give a nice throw under a zoomie lens !
Thanks again !!
Currently available I guess not! There is/was the AWT IMR16340 15C but those are hard to find!
Most of the cells handle 3A but not much above it :zipper_mouth_face:
I recently asked Vapcell about a high current 16340 and after some discussion how that would sell (the 16340 format is hardly used in vaping so it would just sell for flashlights) Dennis from Vapcell promised to look into it. The AW 16340 15C from years ago (tested by HKJ) proved that a high current 16340 is well possible.
Yup, I noticed that in the thread
The only issue is that the 15C is very difficult to get (at a good price at least)! I really hope they can get it done, would be a fresh air in the 16340 flashlights!
I’m interested to see the results
But I’ll probably not buy them myself though, I would rather wait for the larger CULPM1.TG for better cooling and more lux.
Hi,I didn't test new Osram leds on mosX 20mm pcb, but I guess it would start to loose performance at >4Amps due to high power density. You could use standard Cu DTP and well cooled LD-A4.
I am fed up with dealing with reflector shorts and thick wires on MCPCBs. I don’t quite understand why there aren’t any LED MCPCBs that have through holes/vias that are wire connection points instead of the slots for wires to pass through and solder on top.
I’d like something like this: An Unorthodox Way to Solder a wire to an MCPCB ~ ~ Low Profile Attachment (HD2010) but instead of having to drill new holes on the pill/shelf, have two of the existing slots for wires converted to holes for direct wire soldering. This would make things a lot easier. Is there a reason why these kind of MCPCBs don’t exist? Have you considered making MCPCBs like this? I’d only buy these if they existed.
From what I know, the problem is probably the substrate.
In normal PCBs, the substrate is FR4 (fiberglass laminate) which is non conductive. It’s just the thin (1oz or 2oz) copper layers on top and bottom which are electrically conductive.
Let’s say you have a FR4-PCB for the LED. You drill the hole, feed the wire trough it and you’re done. There is no real problem as the FR-4 isolates your connection to the flashlight host.
Now for the MCPCB:
Here, the substrate is copper or aluminium. This means, if any part of the wire contacts the MCPCB, it has a short to the body of the flashlight.
The only thing isolation the top copper layer to the thick copper substrate is a pretty thin layer of isolator in between. You want this isolator to be as thin as possible.
You CAN of course add some kind of isolation, but that would increase the cost dramatically. I would guess around 10x the cost of a DTP MCPCB