Flashlight instructions 1. When the flashlight is in use, select according to the voltage and battery requirements of the flashlight. Do not use it indiscriminately to prevent the circuit board from being burnt out. Do not use batteries of different models and voltages at the same time. 2. In use, turn off the flashlight when the brightness of the flashlight changes significantly to prevent the battery from being over-discharged. 3. Heat-dissipation technology: During the use of the flashlight, it is necessary to ensure heat dissipation. When the battery is fully charged, it is better to use the second gear first, so that the lamp holder and battery of the flashlight can be extended Can not direct the flashlight light to the human eye, super bright, so as not to affect vision, especially children. Power supply: 1*18650/3AAA battery Power: 10W Function: can dive 15-20 meters, magnetic control switch (strong light-weak light-flash) Delivery Quantity: 1set, ([with 1 18650 battery and USB single-slot charger]) (Package contents: Only the above package contents, excluding other products.) Size: 80*90*36mm, (Reminder: The size is measured manually, please allow 1-2 cm measurement error) Color: yellow (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)