The DIALIGHT 551-1502F is a 3mm LED circuit board indicator (CBI) ideal for backlighting and indicator applications. Its extended housing and narrow viewing angle minimize light bleed, while the UL 94 V-0 rated black housing provides high contrast. The CBI's design facilitates PCB cleaning through housing stand-offs, and it meets solderability standards per MIL-STD-202F. Available in green, yellow, and red, this component is compatible with various LED driver circuits, making it a versatile choice for industrial control panels, instrumentation, and other applications requiring clear visual indication.