Masthead Light - 5nm - Vertical MountLopolight's Masthead light 5nm for vessels 20-50 meters. Single light, vertical mounting.Features:LED (Light Emitting Diode) navigation lightUnique and precise definition of light anglesRugged and unbreakable: Precision machined anodized aluminium housing protects the LEDs and electronicsCompletely waterproof and vibrationproof: Interior is fully filled and sealed with special potting resinWaterproof to IP68+ (submersible)Low power consumption - 70 to 90% less than traditional navigation lightsFull brightness with input voltages ranging from 10V to 32VAll Lopolights have been tested several times during production, a total of more than 24 hoursEasy to install, adaptor and screws included (when applicable)