led cup lamp (JB-L50W18-A/B)

mode is the code of our company product .J stands for jiajin ,company name .B stands for cup light .L --trump ,its shape.50---bore size.(unit-mm).W stands for color ,is white. 18 is a symble quantity .last word A/B stands for without or with 2 legs.
 it has a widely used in expressway,building lighting , night lighting , picture high lighten at light.