Dual filament BAY15d replacement bulb.
In automotive and trailer applications, this bulb is used for tail (6 CP)/brake-signal (21 CP) lights, with one or both filaments illuminated.
• S-8 shaped glass lens, with 1.04" diameter
• "standard" 15 mm base diameter
• 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
• Tested for dependability