I have yet to work with the luxeon kits from the graflex shop, but I have used the ones form The Custom Saber Shop and those should work roughly the same way. You would first need to remove the innards of the original graflex....there should be a small set screw right above the glass eye. Unscrew said set screw, and unscrew the brass pins as well. When you remove the red button on top of the graflex,there should be another two pins there. take those out as well. you should now be able to slide out the original bulb socket assembly. As for the luxeon kit. You would first need to wire up your Lux LED and stick that onto your heatsink. from there. you should be able to slip the heatsink/LED assembly onto the bottom of your luxeon socket. If you have any other question, feel free to let me know.