Shorts specs:
*0.7mOhm FET, bottom pcb and fet drain is soldered directly to brass case, this eliminates additional contact resistances (those can be higher than FET resistance itself) which are present in classical PCB-retainer tailcap
*ultra-capacitor as auxiliary supply - practically unlimited life,reliable,fast charge, no need to replace it unlike coin batteries
*0-600uA Constant current channel for illumination LEDs
*Press-button momentary switch
*Configuration mode - adjustable illumination brightness, switch UI style, lockout, short-long time threshold set, factory reset.
Switch style 1 works like this: short click changes mode (short-long time threshold can be adjusted in config. mode,default is 0.4sec), long click turns flashlight off. From off, flashlight is turned on at switch press.
Switch style 2 works in the opposite way, short click is on-off, long click cycles through modes.
Entering into config. mode is done by holding switch from off for few sec and entering password after that, config. mode is very similar to LD-x4 config. mode, with table based menu/sub-menu.
For now I plan to have versions for Convoy S, M, C8 lights (with rubber tailcap), and EE X6 lights, also can be other lights which have compatible Convoy/X6 tailcap parts.
I can make custom versions for some other lights if there is enough interest.