Industrial strength light made from anodized aluminum for superior protection in harsh marine environments. Will not rot from harsh sun exposure. Bright LEDs (light emitting diode) and powerful solar panel provide all night illumination. Low profile design works well for docks and marina applications needing to provide ambient pathway and dock lighting. Ideal for marking swim rafts. Built-in reflector provides extra safety for passing boaters. Hassle free mounting. Replaceable battery.