Yes the model 14 is the closest one to the actual military light, however it is still a 12 volt light......the thing that I am not 100% sure about is if the "newer" model 14 has the same gear reduction system under the main plate....the military ones have a series of gears, most of the 12 volt lights do not...
The reason I say "newer" model is that the model 14 changed, and to make it worse I have heard that they discontinued the model all together now.
If you can't find the gear you are after you can use 12 volt beacons, one of 2 ways......add a 12 volt system on the truck (like I did) so you can run ANYTHING 12 volt you want, or you can run a pair of them instead of one and wire them in series...still hooked up to 24 volt. I am running the model 100 lights on my truck, same housing as the military lights however uses halogen bulb and is cheaper.....I also have more of them, just have to put up an ad in the for sale area(I don't want to sell them in a thread, so don't ask)