The IDEC YW1L-M4E10Q0W is a compact illuminated pushbutton featuring a momentary mushroom design without a lamp. Its space-efficient 10mm thick contact blocks are designed for easy installation and removal, thanks to the separate contact block. The pushbutton is lightweight and features a durable metal bezel. It also offers the convenience of a removable operator and compatibility with unibody pilot lights and key selector switches, enhancing its versatility in various applications.