This unique navigation LED boat lighting is designed to be used on sailboats. It is engineered and manufactured to withstand severe environments. Built-in ultra bright LED beads, provides maximum visibility --- visible from over Two miles ! Stable characteristics, high reliability, Greatly improve your navigation safety Specifications: Base size: diameter 54mm Height: 70mm Voltage: 12V-24V DC Beam Angle: 360 degree Visibility: about 2 mile Power: 3W Splashproof: IP66 Fitment boat size: for all boat size less than 12m Colour:black Material:Engineering plastic+PC Size:54 x 70mm Package Contents: 1 * Boat Light Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.