the biggest disappointment of my flashlight adventure yet is the awesomeness in power of the xhp50.2 and the torture that it is almost impossible it find i. 5700k, but more than that, it isn't made in anything below 5700k! With the xpl-hi 5d and 5A being so perfect, why can't their xhp50 be made with these cct?.
Much lower thermal resistance (0.2K/W vs 0.7 K/W). I also note that now they measure according to a JEDEC standard. XHP70.2 datasheet doesn’t mention that, so measurement methods might be different and so - the numbers might not be directly comparable
Vf changes a little less with temperature and is marginally higher
Again I see that these tend to have 1 bin up
Light emission is slightly narrower, FWHM is 120° rather than 125°.
Also from the XHP50.3 data sheet, “configurable to 3 V, 6 V or 12 V by PCB layout”
Finally, one emitter covers the entire voltage gamete. Why didn’t they do this from the beginning? Im looking forward to trying out the XHP50.3 HI in a few older flashlights that need upgrades.
With the 3V and 6V LEDs having the same pad layout, I don’t think that’ll be the case.
Anyhow, looks like we’ll have an updated 70.2 that’s a little throwier, and a 50.2 that’s much throwier. This will probably be a simple reflow to make the FT03 and other 50.2 lights a lot throwier without sacrificing too much output. Double the intensity as previous xhp50 iterations as they said.