Torch

A 许多电话包括一个小的、明亮的白色 LED，可用作手电筒。

The main purpose of a flashlight is to provide light in the absence of light. The flashlight can also be mounted on the helmet which can serve its purpose to people in mining fields and camping.

It can be used for general purpose work like searching in dark places, garage or your car’s trunk and they can be mounted on bicycles too.