... ,blue,white,yellow IP67 Detailed Product DescriptionDWS302 SOLAR CAUTION LIGHT WITH SOLAR FUNCTIONNominal night range:3.6km-5kmMinimum autonomy:140hours ... .offshore oil &gas rigs5.Research Buoys ,Breakwaters6.Marine floating signs,waterfront safety lighting7.Mooring and researching buoys small ... ,white,yellow.)that meet international chromaticity requirements. solar warning light for airport runway