The 568-0122-222F is a quad-level rectangular LED indicator block manufactured by Dialight, featuring four independently addressable LED positions arranged in a 2×4 through-hole configuration. This specific model is configured with green LEDs in positions 1 and 2, and green LEDs in positions 3 and 4, providing uniform green indication across all four positions. The device operates at a forward current of 20 mA with a forward voltage of 2.1 to 2.8 V for green LEDs, achieving a luminous intensity of 3.75 mcd minimum at 10 mA test current, with a peak wavelength of 565 nm and dominant wavelength of 568 nm. The block features a compact rectangular housing with lead spacing of 0.100 inches (2.54 mm) and is RoHS compliant, making it suitable for panel-mount indicator applications in industrial control panels, status displays, and diagnostic equipment where multiple independent LED indicators are required in a space-constrained layout.