... luminous efficiency 4, Widey working current range Application: " Underwater Light for Boat, Yacht, Surfboat(install to Engine brackets, ... lights with 2 meter cable 2, Driver: 6, 9W with internal power regulator, 18W, 27W, 36W with ... If you need external power regulator for 6W, 9W, we can provide, but the price will ... PC 3, Paking details: 48PCS/carton for 6W, 9W, 20PCS/carton for 18W, 27W, 36W, carton ...