Carlo Gavazzi's PL22STC dual color LED pilot lights
DUAL PILOT LIGHTS
PL22STC dual color pilot lights monitor if a load is on or off, as the LED will be illuminated in either green or red, all in one device. They not only save in inventory costs, but also require only one panel cutout vs. two. The pilot lights are designed for 22 mm (0.87) through holes, and when it is powered on two of three terminals (2 and 0), the green LED illuminates, and when powered on two other terminals (1 and 0), the red LED illuminates. The LEDs are rated to last 100,000 hrs.