Does anyone else have this light or any of the others from Wolf-Eyes? Do you notice that the head does not screw all the way down? If I take out the LED bulb and reflector altogether, it can screw down all the way. Why is this? Is mine defective, or are all of them like this? I am using the Q2 HO CREE btw. Is this not good then for dunking in water, rain or puddles? The head just barely covers the O-ring.