RUSH LED Front Indicator JET SL / SL+

- The origin of KOSO -
KThe reason KOSO came to the world was that an independent brand for research and development was deemed essential for marketing in the future, so we registered KOSO as our trademark in 1989. KOSO comes from two Japanese words -“idea” and “high speed”; “idea” here means creativity, and “high speed” means high performance - combining these two words means that we hope our company can use creativity to create high-performance products!

- The spirit of KOSO -
KOSO wishes to establish quality, techniques, and service on the basis of integrity and trust – these represent the spirit of KOSO.We persist in keeping this attitude of not only producing high-quality products, but also pursuing the innovation of products and improvement of quality. Moreover, we look forward to bringing outstanding products to everyone.



- The future of KOSO -
To pursue perfect design and quality in our products is our goal, so KOSO continually enhances our technology to spur ourselves forward because we strongly believe that brand image and product quality are equal to each other. Therefore, our company requires a very strict development and production process, and quality control of products. When we step onto the world stage, we expect to reach the target of high quality at the same time.KOSO will continue to develop more humane and innovative products in the future, and we promise to become the next number one in the world from Taiwan, another glory of Taiwan, and the pride of the Taiwanese.

- Exhibitions and Certifications -
Since 2001, KOSO has been participating in exhibitions in Italy, gradually stepping onto the international stage. We’ve brought KOSO’s dedication and expertise to the global market, striving to convey a high-quality and innovative image. In 2007, we obtained the TS16949 international certification, and by 2024, we achieved ISO 14001 and ISO 45001 certifications. Looking ahead, we aim to create products that resonate even more deeply with our customers.Every product that we launch undergoes rigorous installation testing, which is the most stringent quality inspection method. No matter how well a product is designed, its true quality is tested when it’s installed and used in real-world conditions. To further enhance quality and put our products to the test, we participate in international competitions. Each award we win serves as a testament to our product’s excellence, as these installations allow no room for error. Our commitment to quality is that strict.Our testing reports and product measurement charts are a demonstration of the installation results we deliver to our customers. It is through this meticulous approach that we continuously improve the quality of our products, making them better each time.




- Equipment and Checkpoints -
For each of our products, we conduct pre-inspections using the most advanced machinery. We set up various conditions to simulate and test, such as vibration tests, waterproof tests, and more. All the partner manufacturers involved in the inspection process recognize and trust our principles for quality control and the reliability of our testing results. What’s truly remarkable is that as our products undergo rigorous, challenge-like testing, we continuously adjust the conditions based on real-world environments. By incorporating these adjustments and focusing on user-friendly operations, we ensure that our products are tested and refined under the most realistic scenarios, ultimately enhancing their quality.