Replacement SM Navigation Light Lamp 12V x 12cd x 10W for Stern and Anchor Lights.Suits Aqua Signal Series 40, 41 & 55 as well as other manufacturers requiring a Bay15d fitting.Danlamp is a leading supplier of signal lamps for the shipping industry and supplies approved Navigation lamps for all vessel types both commercial vessels and pleasure boats.SpecificationsDanLamp Item Number:10129Voltage: 12 VRated wattage: >10 WCap-Base: Bay15dLuminous intensity: 12cdNATO Stock Number (NSN) 6240-99-545-6531Diameter / Length: 25 mm / 70 mmDesign: Clear lensDiagram