When boating at night an Anchor lamp is required to be illuminated if a vessel is anchored.White L.E.D illumination with a minimum visible distance of 3 nautical miles360degree visible angleMeets EMC EN60945, USCG & ABYC A-16 StandardsIdealfor yachts and powerboats up to 50 metresUltra reliable with over 50,000 hourslifeIP67 – fullysealed and sea/salt spray resistant