The ongoing improvement of efficacy, competence of SDCM control and color rendering index in LEDs accelerate high-end commercial lighting market’s development that demands higher light quality. High-end commercial lighting market mainly include museum, galleries and other exhibition lighting applications that primarily use downlights, projectors and reflectors.   LEDinside, a division of TrendForce, reports in its “High-end commercial and track lighting market” that the market scale of two frequently used luminaires for high-end commercial lighting, namely Downlight and Projectors and Reflectors (Par& Rs.) separately reaches US $1.88 billion and US $1.54 billion in 2016. It’s projected that the market scale of Downlight is to reach US $2.01 billion and Projector and Reflectors at US $1.59 billion in 2017.