High-performance BAY15D 1157 P21/5W P27/7W dual-filament automotive bulb with strobe flash capability. Precision-engineered tungsten filaments ensure consistent brightness and extended lifespan. Durable borosilicate glass resists vibration and thermal shock for reliable operation.

Universal fit for brake, tail, turn signal, and backup light applications (compatible with 3157, 7440, T25 sockets). Multi-voltage DC12V design works with cars, trucks, motorcycles, and trailers. Red/white dual-color option provides flexible installation choices.

Strobe flash technology enhances visibility for emergency vehicles or custom lighting setups. Military-grade brass base ensures optimal conductivity and corrosion resistance. 360-degree omnidirectional light pattern with 1200LM output for maximum road presence.

Industrial-grade epoxy resin seals protect against moisture and dust ingress. CE/RoHS certified for safety compliance. Bulk packaging available for commercial fleets and auto repair shops.