Hi guys, I’ve got a few older lights similar the ones below, running an MC-E and SSC P7. Just wondering if i’d be able to solder in an XM-L U2 I have lying around? They will fit easily, both on 16mm sinkpads, just not sure on voltage etc?
http://dx.com/p/mte-m3-2-cree-mc-e-8-mode-700-lumen-led-flashlight-with-assault-crown-1-18650-16501
http://dx.com/p/ultrafire-sf-23-ssc-p7-d-sxo-5-mode-900-lumen-memory-led-flashlight-with-strap-1-18650-50315
I have same sort of question. I have a C8 with T6 I’m hoping to swap an XPG2 into without driver change. I wonder if it would work. Would a simple re-soldering be all that is required?
I'm pretty sure that you can swap emitters from MC-E, SSC P7, etc., because I'm pretty sure voltage/amps is still the same. I did a recent P7 upgrade to XM-L2, but I went with a SinkPAD copper star and a driver upgrade to get the amps up - original driver was really weak.
Joe - definitely T6 to XP-G2, but things you have to be concerned about is amps and centering/fitting it into the reflector, and if you get a decent beam pattern out of the reflector. I believe the XP-G2's can take a lot of amps, but others are concerned about it. Of course always better on copper stars!
Cool thanks, will have some 16mm XM-L U2’s left over after upgrading my incoming BTU Shocker to XM-L2’s on copper, might as well make use of them 
Be careful with the MCE. Some MCE lights are wired in parallel and are higher voltage. If you drop an XML in there, it could fry it.
If it’s a single cell light it should be fine?