The 553-0132-400F is a 3 mm bi-level LED indicator from Dialight's Series 553 optoelectronics line. This component features a compact 3 mm form factor with a bi-level housing configuration and tinted, diffused lens style designed to provide optimal light diffusion and visibility. The indicator is available in single colors including green and yellow options, making it suitable for status indication and visual feedback applications. The product is RoHS compliant, ensuring environmental compliance for modern electronic assemblies. Common applications include control panels, instrumentation displays, and equipment status indication where compact, reliable LED indicators are required.