Do you know the applications of LED lights?

As we known, LED light plays an important part in our life. But someone still don't know the applications of LED lights. Firstly, it is widely used in Decorative lighting. Due to the big advantage in colors, energy saving, people like to use it as light source. Mostly assemble it match different lamp cover. Secondly, LED light is used as daily illumination. Household or commercial light tend to choose it in the long run. Last but not least, the typical application of LED lighting is for city lighting. Different lighting colors of LED light create a new world in every night.