Moonreft: pull the foam piece that isolates the battery spring carefully and see if the driver board is at an angle, if it is, you need to carefully straighten it out and put a small piece of rubber behind the driver board (opposite side that the switch is on) - one of mine didn't have the rubber board support and after pushing the button for a few seconds it moved the driver board enough that the switch stopped working ... PM me if you need pics or ? to guide you.
Well, that aside, here's the skinny: I also ordered P2's and got P1's, but at $12 I'm just fine with that. The lasers came in the typical "New-Wish" boxes/cases with bateries and instructions (as we're all familiar with). As I stated above, the box arrived to me really warm and the "test-fire" of one of these yesterday was a little scary, but seriously the temperature of the laser itself had to be 90f plus so I was hoping that the second test(s) would be better ...
They were! All the lasers were at least 54mW, with one little bruiser throwing out 81mW and only fading to 75mW after about a full minute! The average across the board is just over 61mW, so for $12 each these are an incredible deal in cheap laser pointers!
Beam quality is average for cheap pointers, one laser has an inordinate amount of splash (haven't tried to clean the lens yet, fingers crossed) and the beam on the 81mW one leans just a touch (barely noticeable) towards oval at long distances (50ft+) but the rest are just fine, especially keeping in mind the price, UNDER $12 !!!!
I noticed their stock is running out on different styles, but I'm still going to see if i can order a couple dozen of these while they still have them!
i would ask you one think to do...
" and "ROTFL" ..... 
