They must have sent ours at the same time
I'd go for the 2nd one as it has a few more features like tactical ring, clippy thingybob
As for the BC40... Had a play and it is indeed better build/feel quality pretty much everywhere compared to the SolarForce L2 and Ultrafire C8. It is quite light though minus batteries and probably about the same as the C8.
The screw feel is very smooth and everything feels solid, the housing has been machined nicely and the marketing blurb is pretty much 100% accurate from what I can see. It comes with spare orings and button, and a worldwide warranty too which is nice !
Saving the best until last.... Beam shot! Can you guess which one is the BC40 and which is the C8?
The BC40 cost about 2.5x more than the C8 and I feel the build quality and performance is 2.5x the C8, I think the C8 does a superb job though and for what it costs it's easily a disposable weapon of choice for those looking for a torch that is bright, pocketable and has a long battery life, although it's not waterproofed or scratch proof. I can't seem to find a way to unscrew the head to get to the reflector though, might be very tight. It looks like the reflectors of the C8 are the same depth and size and I bet the BC40 would light even further with a smooth reflector as the C8 does...!