ELECTRIC MARINE SIGNAL UNITS AND PARTS, NAMELY, ELECTRONIC LANTERNS AND FLASHERS, ELECTRIC MARINE AUDIBLE SIGNAL HORNS; ELECTRIC OR ELECTRONIC SENSORS USED TO REMOTELY MONITOR SIGNALS AND POWER SUPPLY OF LANTERNS, FLASHERS AND HORNS, AMPLIFIERS, MARINE LIGHTS; BATTERIES, BATTERY CHARGERS; POWER SUPPLIES, SOLAR PANELS, VOLTAGE REGULATORS; AND BATTERY BOXES