1. Rechargeable batteries are suitable for users who frequently use flashlights to reduce battery costs. The 18650 lithium battery is the most commonly used size. Lithium batteries are light in weight and can output large currents and alkaline batteries with small output currents, but they are cheap and can be bought in every corner of the world. It is widely used in ordinary led series. Brightness and usage time are always trade-offs. Generally speaking, the usage time is the opposite of the brightness, the brighter the brightness, the shorter the usage time. ​​
2. The brightness is mainly determined by the light bulbs used. Generally speaking, the brightness of high-power leds > the brightness of ordinary leds. How to tell which flashlight is brighter with similar bulbs? You can refer to the 'brightness' column of the flashlight specification table. The larger the lumen value, the brighter it will be. Reaching more than 100 lumens is enough to make people dizzy. ​​
3. High-end flashlights will provide special accessories such as flashlight covers, hand straps, etc., which are more convenient for you to carry your beloved flashlight with you. The purchase of regular manufacturers' products also has a continuously improved after-sales service system to ensure the use of the flashlight.