So are you saying that in a triple we can get max 9 amp from the LD-2?
Personally i really like the idea of non PWM modes, and if there are efficiency gains to be had at the lower modes why not get them.
3 Amp per emitter should get about 3000 lumens or so, i don’t think my current X6 triple does very much more, maybe 3300-3500 tops.
Most of the time in house i use the triple on the lower modes, and yes of course i want the max it can do on turbo when i need it.
But the question is how much do we lose and how hi can we go.
I know the LD-1 couldn’t at all without severe mods, so how much can the LD-2 do if we lower the resistor so we get as much amp in a triple or quad as we can get, or will it get to hot in the middle modes like the LD-1.
You can use it for triple,if you ensure good enough thermal path between driver and body.Until I edit info thread(have some problems with that),you should check .docx document https://budgetlightforum.com/t/-/33706, post #14.
From that document you can see that with typical flashlight pill filled with silicone cubes only,you can drive triple xp-g2 at 9A without problems.Replacing part of those silicone cubes with metal as "filler" ,thermal performance should be even better for more extreme builds.
Also you can check djozz' build thread with mt-g2 and LD-2 prototype,he pretty much did a torture test and LD-2 survived.
Driver doesn't know how many leds you connect to its output,practical limitation is heat generated in driver;how to calculate that,you can find in info thread.
With LD-2 you can get practically identical current on max. like with DD drivers,check djozz' LD-2 prototype test and comparison of currents vs. DD driver. The important difference is that LD-2 will limit current when it reaches 6Amp. You can change 150k resistor if you want higher current,but with typical cree xm-l2,xp-l 6Amps is usually max. possible current with 1x cell (ok,maybe you could achieve 6.5-7Amps,but only for a few seconds,and gain is minimal).
led4power, I just wanted to be the first person to thank you for making this possible.
Prices are very fair imo. Someone like rmm or the others could get maybe 100 at a time and offer them to us for around the same price his other drivers are.
I absolutely loved the five LD-1 drivers I purchased off you before. I’m looking forward to trying these new LD-2 drivers. Your design looks impressive. Just trying to figure out how I can get five of those sweet drivers. I hope Richard of Mountain Electronics carries them as well. By the way, it is folks like you that make the BLF a very special place! Keep up the great work, cheers!
I offered already to do the US group buy if nobody else steps up. But, I’ve also been waiting to see if Richard will carry some of these in his store, because that would be much better. I think, if we end up going the GB route, we will need to reach 100+ drivers in order to get the best price, to cover re-shipping from the GB host (me, if nobody else does) to each individual purchaser. Maybe 50+ pieces would be enough for that. But, in case you missed it, the MOQ was reduced to 4 pieces for anyone outside the EU. That’s probably low enough for most people interested, although the price will be higher than what we can get with a 100+ GB.
Waiting to see how this shakes out for US buyers. Would want two to four depending on price. Hopefully, the price will show a modest discount from the qty. one price.
