-GS,CQC,CCC,CE and BS certificated -Natural silicon gel gasket used in the housing PC clips or S/S clips for locking and waterproof cable gland on side o the housing to ensure good waterproof function. -Many types combinations between housing (ABS, PC) and diffuser (PS, PMMA, PC) to meet different requests. -PC wire clips to ensure electrical safety. -Prismatic diffuser with unique shape design to get average ray, efficient usage of light and good dazzle-proof effect. -Easy and quick to installation under ceiling or on surface. -Plastic gear tray holder connected to the housing for easy maintenance.