MAXIMIZE SIGNAL VISIBILITY WITH KOITO AMBER PRECISION

The KOITO 4570A S25 Signal Lamp delivers a high-intensity amber glow specifically designed for automotive turn signals. This 12V 21W bulb ensures your intentions on the road are communicated clearly and instantly to other motorists.

Why choose KOITO 4570A S25 12V 21W SIGNAL LAMP (AMBER) BAU15s?

Perfect for drivers who refuse to compromise on safety, this Japanese-engineered bulb features a specialized BAU15s offset pin base to prevent incorrect installation in standard sockets. Whether you're navigating heavy traffic or poor weather, the deep amber hue and consistent brightness provide the reliability of original equipment, offering long-lasting peace of mind and legal compliance.

Features of KOITO 4570A S25 12V 21W SIGNAL LAMP (AMBER) BAU15s

High-output 21W filament for maximum signal contrast.

BAU15s offset pin base (150°) ensures a secure, correct fit.

Genuine Japanese manufacturing to strict OE standards.

Heat-resistant amber glass resists fading and cracking over time.

Engineered to withstand high-frequency road shocks and vibrations.