LED (light-emitting diode) technology, as the bright star of the 21st century, not only lights up our daily life, but also leads the trend of technological innovation in many fields. From home lighting to urban night scenes, from electronic device displays to large billboards, LED applications are everywhere, and its energy-saving, colorful, long life and other characteristics are loved by people. With the continuous progress of technology, the brightness, stability and color performance of LED are constantly improving, bringing more possibilities to our lives.