1. The choice of light source: LED flashlight, as the name suggests, the light source is led, the irradiation distance is much stronger than the general light source, the decay speed is slow, and the service life can be as high as 100,000 hours.

2. The choice of power supply: For outdoor places, strong battery life is required, so we generally recommend the use of lithium rechargeable batteries. This kind of rechargeable battery has low energy consumption and a much longer life than ordinary rechargeable batteries, which can be repeatedly used. Charge more than 500 times. Therefore, the choice of battery can be various, and it can also be easily replenished.

3. Observation of workmanship details: Because each diode of the led flashlight is connected to the circuit board by welding, it is very important to observe whether the welding at the welding place is firm. If it is not firm, the virtual welding will affect the whole flashlight. use. In terms of the workmanship of the flashlight, it is not bad at present. It is not the same as before, and the cost-effective is not bad.

4. The emergence of multi-level dimming technology finally makes brightness and battery life appear on the same flashlight. You can choose the most suitable brightness for different purposes such as camping, hiking, and searching, while reasonably saving precious power. At the same time, the multi-level dimming technology has also derived many auxiliary functions, such as the SOS distress signal, which can send out the Morse code for help in case of danger, and ask the rescuers for help.