I can’t help with dates as I’m noob on these things! But for outputs and other things, comparing some Convoy lights, take a look at these threads
I’m only able to talk about the S2+ models, that normally are more floody, except the versions with the LED XPL-HI and Smooth reflectors (SMO) (Desert Tan - Convoy S2+ Desert Tan Available Now!) which provide a bit more throw and a smaller and more defined hotspot.
Take a look around here in the forum, there will certainly be some detailed information about those !
