Ancor lamps are made with a heavy duty glass envelope for break resistance. Nickel-plated brass bases prevent corrosion while ensuring a positive point of contact. Filaments with “rough service” design permit hours of reliable burning.SpecificationsSystem voltage: 12 VDesign voltage: 13.50 VAmps: 2.08 AWatts: 25 WLife: 1000 hoursDimension: 2.34″ x 4.2″Bulb trade number: 25A17/12RoHS compliant (Restriction of Hazardous Substances Directive): Yes – compliantDimensions