LED flashlights are composed of multiple diodes and have a high color temperature. The visual impression is very bright, which is his characteristic. Also, it is very energy-efficient, and a fifth battery can last for more than ten hours. In addition, the magnesium aluminum alloy metal shell has a compact appearance that is windproof, rainproof, and corrosion-resistant, making it very suitable for outdoor use. But the biggest drawback of this product is that the irradiation distance is very small, usually only about twenty meters. Far away, I can't see clearly. Above are the shortcomings of this flashlight itself.

A flashlight is a handheld electronic lighting tool. A typical flashlight has a battery powered bulb and a focusing mirror, as well as a handheld case for handheld use. Although it was a fairly simple design, it was not invented until the late 19th century because it had to be combined with the invention of batteries and light bulbs.