Lighting are devices that illuminate the field of view with artificial light to make it easier to work and to brighten dark places at night. There are various types of lighting depending on the purpose and work conditions such as projectors that use reflectors and lenses to reach far distances, desk lamps that allow you to see your hands well while working, office light fixtures, handheld lights and headlights used for outdoor work, etc. Optional functions such as those that can adjust the light intensity as appropriate, those that can change the part that is exposed to light by changing the angle of the light fixture, those that can be used outdoors without hanging supports with hanging hooks, are also abundant. Sensors that react when people pass by and light up temporarily can save energy when used in parking lots, office building corridors, toilets, etc. Light sources include incandescent lamps, fluorescent lamps, and LEDs, and can be selected according to the color and intensity of the light.