Infrared laser pen violet light. Three-and-a-half banknote lashes, mini-fluorescent

Honey, in order to prevent a leak, there's a small insulated piece of paper inside the battery that prevents the battery from contact with the lamp, which can be kept for a long time, as soon as the goods are received. R

I don't know

I don't know

Now, if you're going to rip the back of the lid and pour out the battery, you can see that little insulation piece of paper, and then you can put it back in