Britta Products Continuous or Flashing Solar Warning Light, 360-Degree, LED 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; Three modes - continuous, 1 second flash or 5 second flash Heavy duty clear ABS plastic case - fully waterproof and weatherproof Surface Mount Style - Heavy duty mounting flanges for secure installation A bright fully automatic re-chargeable navigation and dock identification light