... Pearl Cotton,and PE bag. 4.Applications- led downlight ceiling lamp 1. Factories, Hospital Lighting2. Warehouse, Supermarket Lighting3. Schools ... day usage). (5) More BrightnessBig lighting angle ,which can improve the luminous area effectively. (6) Low power ... ) Beautiful SurfaceUltra-thin design conception, New round and square shape.(9) Approved CertificationsAll product by CE, ROHS, FCC , ...