Okay gang, working on solutions for my homebrew M3 head with an XHP50. Had some success sticking one in a Night Ops Gladius, so I tried putting one in front of a Dr Jones H17Fx. It no worky, so I learned that my simplistic approach was incorrect in that voltage only mattered for incans and current was all that mattered to LED's, the "6V" designation for the XHP50 still mattered for this application. I stuck an XM-L2 in front of it and it works fine, but I still want to get an XHP50 running.
(I know there are high powered 3V led's out there, I'd like to try an SST40, and I would like to eventually get the light bored for 18mm cells. I just love the beam and the output of the XHP50 and want to see it running in this light. Also like the idea that in a pinch, I'd be able to run primaries so I like flexible solutions that allow higher voltage.)
So I have a few drivers on the way to experiment with and going to try them out with some 6V XHP50's. Want to level set myself so I'll be able to get things working. I know I still have some things to learn so feel free to school me if I'm misinformed. My main question is I learned I need at least 6V to run the XHP50, but how much more is too much if you still keep the current down?
1) 17mm simple 2.7 to 14v buck driver that outputs 2A, I should be able to put two li-ions (17500) in series and run the XHP50 safely, right? Even though the 2 li-ions are 7.4 to 8.4 off the charger and exceed 6V. Despite short runtime, what would happen with 2 or 3 primary batteries?
2) 17mm FET driver with Zener mod, no LVP. Since the description is "This means that the input voltage must be closely matched to the output" it specifically references running a 6V LED with 2 li-ions, so I should be okay right? Again, how much more voltage is too much? What about 2 or 3 primary batts?
Thanks in advance!
(I know there are high powered 3V led's out there, I'd like to try an SST40, and I would like to eventually get the light bored for 18mm cells. I just love the beam and the output of the XHP50 and want to see it running in this light. Also like the idea that in a pinch, I'd be able to run primaries so I like flexible solutions that allow higher voltage.)
So I have a few drivers on the way to experiment with and going to try them out with some 6V XHP50's. Want to level set myself so I'll be able to get things working. I know I still have some things to learn so feel free to school me if I'm misinformed. My main question is I learned I need at least 6V to run the XHP50, but how much more is too much if you still keep the current down?
1) 17mm simple 2.7 to 14v buck driver that outputs 2A, I should be able to put two li-ions (17500) in series and run the XHP50 safely, right? Even though the 2 li-ions are 7.4 to 8.4 off the charger and exceed 6V. Despite short runtime, what would happen with 2 or 3 primary batteries?
2) 17mm FET driver with Zener mod, no LVP. Since the description is "This means that the input voltage must be closely matched to the output" it specifically references running a 6V LED with 2 li-ions, so I should be okay right? Again, how much more voltage is too much? What about 2 or 3 primary batts?
Thanks in advance!