Street lights: used for street lighting, to prevent because of insufficient light again at night will cause safety accidents. Lighthouse: mainly used for navigation and aviation, used at night, navigation, to prevent ships or aircraft due to light problems and the ground collision. Traffic light: to direct the traffic of the transportation of the busy section of the traffic. Searchlight: used to find, lighting. However, the illumination range is not large, but the light is strong and clear where it shines. Shadowless light: is a hospital-specific light, used for surgery, composed of multiple lights around the strong light beauty has irradiation dead zone, can make the operation, the surgical part of no shadow. Neon lights: bright colors, styles, used to attract people's ideas, mostly for signboard advertising.
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