1.Good quality and beautiful design 2. ... 4inch led downlight Advantage:1.Contracted beauty, with simple and stylist design beautiful, foil noble temperament;2.High ... life 40000 hours, the quality of choice5.Quality assurance five years: leading, quality assurance five years, durable, ... corrosion resistance, scratch resistance Plane frame using high polishing PC, and grind arenaceous diffusion mask ...