Lopo Light. Port sidelight 2 nm for vessels 12-50 meters (39,4-164 feet). Horizontal mounting LED (Light Emitting Diode) navigation light. Unique and precise definition of light angles. Rugged and unbreakable: Precision machined anodised aluminium housing protects the LED s and electronics. Completely waterproof and vibrationproof: Interior is fully filled and sealed with special potting resin. Waterproof to IP 68+ (submersible). Lifetime over 50.000 hours or 4.200 nights. Low power consumption 70 to 90% less than traditional navigation lights. Full brightness with input voltages ranging from 10 to 32 Volts. All Lopolights have been tested several times during production, a total of more than 24 hours. Easy to install, adaptor screws included (when applicable).