The DIALIGHT 553-0177-300F is a 3mm bi-level LED indicator designed for use in a variety of industrial applications. Its high-contrast, UL 94 V-0 rated black housing provides excellent visibility and durability. The housing stand-offs facilitate PCB cleaning, and the LEDs are safe for direct viewing. This component is ideal for creating horizontal LED arrays and offers compatibility with different LED types and color combinations, making it a versatile solution for indicator lighting needs. Contact the factory for custom bi-level arrays and color combinations.