Koito – Japanese Precision and Over a Century of Automotive Lighting Excellence
Koito – Japanese Precision and Over a Century of Automotive Lighting Excellence
Koito Manufacturing Co., Ltd. is one of Japan’s oldest and most respected automotive lighting manufacturers, with a heritage spanning more than a century. The company was founded in 1912 by Genrokuro Koito, who developed Japan’s first domestically produced Fresnel lenses for railway signal lamps. From the very beginning, Koito has been guided by a philosophy focused on safety, reliability, and innovation in the field of illumination.
From Pioneer to Global Leader
In the 1930s, Koito entered the automotive industry by supplying headlights for the early Toyota AA, one of Japan’s first passenger vehicles. This milestone marked the start of Koito’s long-standing partnership with the world’s leading car manufacturers. Today, Koito is a global leader in automotive lighting technology, providing OEM components for Honda, Toyota, Nissan, Mazda, Subaru and many other major brands worldwide.
The company operates advanced R&D centers and manufacturing plants across Japan, Asia, Europe and the Americas. Koito continues to drive technological progress in the automotive lighting sector, developing LED, laser, and adaptive lighting systems (ADB), as well as intelligent optical sensors for next-generation safety systems.
Koito’s Philosophy of Quality
Koito’s philosophy is built on three core principles: safety, precision and trust. Every product – from a simple bulb to a complex headlamp assembly – undergoes rigorous testing for thermal endurance, vibration resistance and optical performance. The brand’s commitment to meticulous engineering and uncompromising quality has made Koito a benchmark for OEM-level reliability throughout the automotive industry.
Drawing on over 100 years of experience in optical engineering and light science, Koito continues to set standards in vehicle safety and illumination technology. The company represents the essence of Japanese craftsmanship – combining tradition, precision and continuous innovation to deliver dependable performance in every driving condition.
Koito – Original Quality from Japan
Choosing Koito means choosing genuine Japanese engineering excellence. As an OEM supplier to the world’s largest carmakers, Koito stands for products designed and manufactured to the strictest standards of precision, safety and durability. Koito is not just a manufacturer of lighting components – it is a brand that defines the standard of automotive lighting worldwide.
9.00zł
Koito 12V 21/5W (W21/5W) Bulb No. 1891 – Glass Base | OEM Replacement for Honda & Acura
Koito 12V 21/5W (W21/5W) Glass Base Bulb – No. 1891 – Genuine OEM Japan Quality The Koito 12V 21/..



