fluorescent waterproof fixture housing(ABS,PC)and diffuser(PS,PMMA,PC) 1*18W 2*18W 1*36W 2*36W -Features-Water-proof, dust-proof, damp-proof, resistant to corrosion. Protection class IP65 - Body: use PC/ABS; Diffuser is made of injected PC/PS/PMMA - Prismatic diffuser with unique shape design to get average ray, efficient usage of light and dazzle-proof effect. - Easy and quick to installation ...