I did some research after some new xm-l2 emitter appeared in KD.
Have some of them on the road, should arrive sometime this or next week, already shipped.
Here is an interesting fact i found. Cree, updated xm-l2 emitter, without mentioning somewhere anything!
From what i see, it is now a direct and maybe better comparison to sst40. I took data from the official datasheets.
Here are some specs that we know of the common leds now:
Everything is believable, except for the 340lm/W claim, unless it was a green emitter.
340lm/W out of an LED, a single high power one no less(unless it was a multi-die LED, but that would still be extremely far-fetched), would be an industry breaker.
I’m also going to need a link.
Also, your other figures seem to be off as well. Ain’t no SST-40 going to reach 300lm/W today lmao.
sorry my mistake, had to mention @0.7amp . fixed it now. My bad sorry the daemon of writing striked me hahha
The datas are from the official datasheets you can check them.
I am slightly confused about this post, or mostly some of the comments lol, and Vf, and outputs. I dont understand, but i did order some XML from Kaidoman yesterday, the 7A3 variant, and 4C variant too. Im just hoping for good tint lol. Not hopeful for 4C bin, but 7A3 could be quite good, i have pretty good 7A3 bin xpl-hi.
Why would a company hide such an upgrade when they are working full time on marketing a ‘’new’’ product that is almost the same as the last one but claim its revolutionary to boost sales?
Or it is just that the manufacturing process is now the same for the old and new models.
ergotelis I’m sorry, but I think that you have experienced “!#$%^ specification syndrome" - somebody have !#$%^ up copy & paste process and you have assumed that it’s true…
Well, that’s a bit complicated, and depends on the driver. A switching (buck or boost) driver would see less heat generation because it would be delivering lower voltage to the LED at the same Amps, so lower power consumption.
A linear driver would be doing the same, except it has to burn off that extra voltage at the driver, so it basically ends up being a wash, though it will stay in regulation a bit longer.
A FET will end up delivering more current due to the lower total resistance, so you may actually see more heat.