At the end of the 19th century, the world was fortunate to receive electric light from the American inventor Thomas Edison. Since then lights have been presented in various aspects, intertwining life and architecture closely.

In the past ten years, the global environment has been deteriorating day by day, which have given rise to a global investment in carbon neutrality by 2050 as its goal. It has been highlighted that lighting is an important part of energy conservation and carbon reduction. Many companies and countries have been extending their reach to the development of multiple applications such as smart homes, smart cities and smart industries.

With the acceleration of technology, both traditional and digital, the development of traditional lighting has been elevated to be systematic and automated. Lighting is no longer monotonous, but displays intelligence and is flexible, diverse, energy-saving, environmentally friendly, low-carbon and sustainable. We are heading towards a secured and sustained future.