1, Super-clase high power LED 2,First-class stainless steel 3, High luminous efficiency 4, Widey working current range Application: " Underwater ... meter cable 2, Driver: 6, 9W with internal power regulator, 18W, 27W, 36W with external power regulator ( Separate one driver), If ... you need external power regulator for 6W, 9W, we ...