High-hardness aluminum alloy material. Used for the flashlight shell, it is durable, scratch-resistant, and can withstand friction and collision in daily use. It not only ensures the integrity of the flashlight's appearance, but also protects the internal components well and extends the life of the flashlight. The flashlight has strong waterproof ability and can withstand strong water flow impact. For example, in various extreme weather conditions such as heavy rain and snow, the flashlight can work normally, ensuring that the lighting function can be stably performed in harsh and humid environments. (Do not immerse in water)