Power watts: 50W, 75W, 100W, 120W, 150W, 180W, 200W, 240W Super slim tight design, housing has less effect to lighting effect of optic lens Much nicer, even, wider higher lighting effect With branded LEDs and driver,150-160lm/w super high efficiency IP66 dual ingress protection( lens + temper glass), IK08 guaranteed Driver box and lighting part separately sealed, more efficient and safe Buckle-lock, tool-free maintenance Curved back, dust-free, self-cleaning Adjustable adaptor(±15 degree), suit adjusting demand of installation TM21 service life >50000hrs