Solar Warning Light - Waterproof Solar Dock Lighting - BLUE LED - Continuous or Flashing 360 Degree Lighting Solar re-charging automatic dock lighting provides 360 degrees of lighting. Ideal for identifying docks, navigation aides or obstructions at night Turns on automatically at dusk. Select either: Continuous lighting, Slow Flash (every 4 seconds) or Fast Flash (60 x minute) Heavy duty clear ABS plastic case - fully waterproof and weatherproof. IP68 Easy surface mounting using #6 holes on the base flange (use washers/stand-offs); Replaceable AA-sized NiMH batteries (user-accessible) A very bright fully automatic re-chargeable navigation and dock identification light