Batteries Not Included! Green Light Gypsophila Laser Flashlight, Laser Pointer Directing Laser Flashlight for Camping, Fishing, Emergencies, Gifts Color style: simple red, no battery, no charger. Power: 100w Flower type: Gypsophila Rotation: can rotate 360 degrees Range: 3000 meters Advantages: straight barrel, beautiful appearance, external focusing, easy adjustment of light column thickness, spot size bright (focusing is very convenient), can use 18650 batteries (screw on the extension tube) or 16340 batteries, large capacity, easy to buy, long life Battery placement ① Unscrew the back cover of the laser pointer ②Remove the battery and prepare to place it. ③Place a battery 18650 or 16340 with the negative pole inside, align it with the spring inside, then screw z the back cover. (Note: when using 123A battery, you need to unscrew the extension tube; when using 18650 battery, you need to twist the extension tube) ④Use the key to open the tail switch lock, the green dot is on and the