... plate,the surface of the panel is phosphorization thence sprayed with plastic,no asy rust,durable long time,reflect curvereflectcover according ... ,4×18/20W,2×40W and so on.3)safe with high effect,easy to install4)competitive price ,high quality ,long ... to making productswith different size according to customer's requirments. T5 4*28W grille lamp(louver fitting,office ceiling lamp)