This Harmony XAL, white light block with universal LED is supplied with 48V to 120V AC. It is compatible with Harmony XB5, 22mm control and signaling units. This light block with universal LED allows fast and easy replacement and configuration of your signaling units. It is easily installed and replaced on compatible illuminated push-button or selector switch units via clip together assembly and connected with simple screw-clamp connections. It enables visual distinction of signaling units via illumination by universal LED. It protects operators from unexpected contact with live circuits thanks to its IP20 protection index. It is designed to fit in a standard 22mm control and signaling units, ensuring compatibility when installing in pre-existing machinery. Vibration resistant screw clamp connection terminals ensure high vibration resistance making product suitable installation on high impact machine.