Feature: 1. In rainy days, it can work continuously for more than 20 days (calculated based on 12 hours a day). With automatic light control function, it can automatically start working in rainy days and nights. 2. Waterproof design, can be immersed in sea water, protection level reaches IP68. It has the ability to prevent earthquakes, lightning strikes, sunlight, rain and snow, and can resist typhoons, hail and other severe weather. 3. Using high‑efficiency solar chips, the photoelectric conversion efficiency is up to 19%. Using advanced charging and discharging management system can effectively extend battery life. 4. The internal use of replaceable solar lithium phosphate battery reduces the maintenance cost and difficulty of the user in the later period. No radio frequency, no electromagnetic interference, stable operation. 5. Using marine‑grade special plastic, it is especially suitable for corrosive places such as oceans, rivers, chemical plants, and airports. Specification: Item Type: Navigation light Material: Plastic Model: TX-LS-E Light Source Life: > 1000000 hours Battery Capacity: 3.2V 3000MA (Built-in) Battery Type: Lithium phosphate battery Solar Panel Power: 1.8W Solar Panel Life: > 20 years Power Consumption: <2W Vertical Beam Angle: > 10° Visible Distance: 1-4 nautical miles Horizontal Light Angle: 360 degrees Flash Intensity: In line for IALA Light Source: LED Working Mode: Flashing, green light flashes once every three seconds Storage Temperature: -55-85℃ Working Temperature: -55-85℃ Wind Resistance: 80 m/s Daylight Switch Lighting Threshold; 300LX-100LX Waterproof Rating: IP68 Continuous Lighting Time: > 20 days (calculated based on 12 hours of work per day) . Package List: 1 x Navigation Light