The DIALIGHT 550-3609F is a 5mm bi-color LED circuit board indicator designed for use in a wide range of industrial applications. Its common cathode configuration simplifies circuit design, while the red/green or yellow/green color combination provides versatility. The LED is housed in a UL 94 V-0 rated black housing, ensuring high contrast and safety. Features include oxygen index of 32%, PBT polymer content, and solderability per MIL-STD-202F. Mounting clips are available for easy PCB integration.