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, 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.Spec:Item Type: Navigation lightMaterial: PlasticModel: TX-LS-ELight Source Life: > 1000000 hoursBattery Capacity: 3.2V 3000MA (Built-in)Battery Type: phosphate batterySolar Panel Power: 1.8WSolar Panel Life: > 20 yearsPower Consumption: 10°Visible Distance: 1-4 nautical milesHorizontal Light Angle: 360 degreesFlash Intensity: In line for IALALight Source: LEDWorking Mode: Flashing, green light flashes once every three secondsStorage Temperature: -55-85℃Working Temperature: -55-85℃Wind Resistance: 80 m/sDaylight Switch Lighting Threshold; 300LX-100LXWaterproof Rating: IP68Continuous Lighting Time: > 20 days (calculated based on 12 hours of work per day) Package List:1 x Navigation Light