R16-503 is a push button switch with light, adopts round red and green design, supports inching reset and self-locking functions, and is flexible and convenient to operate. It provides two pin configurations, 4-pin and 2-pin, suitable for different circuit requirements. The switch size is 16MM, compact structure, easy installation. It is widely used in industrial control equipment, instrumentation, household appliances and electronic equipment, and is suitable for power control, signal switching and other functions. The product has strong durability and stable contact performance, and is an ideal choice for various control panels and equipment.