The 570-0100-221F is a three-position LED indicator assembly manufactured by Dialight, featuring green diffused LEDs in positions 1 and 2, and a red diffused LED in position 3. This assembly is designed for status indication applications requiring multiple color combinations across three distinct LED positions. The LEDs operate with forward voltages of 2.0–2.5 V for red and 2.2–2.5 V for green at 20 mA test current, with luminous intensities of 15 mcd (red) and 10 mcd (green) at 10 mA. The assembly is RoHS compliant (indicated by the "F" suffix) with 100% tin over nickel underplating on a ferrous base material, and can be wave soldered, dip soldered, or hand soldered at 260°C for 5 seconds at 1.6 mm from the LED body. This configuration is ideal for control panels, instrumentation displays, and equipment status monitoring where multiple independent LED indicators are required.