The ABB CL2-501R 12VDC is a compact illuminated pilot light designed for panel mounting in industrial control and automation systems. It features an integrated LED light source that provides clear visual indication without the need for a replaceable bulb. The device has a flat round red lens and a robust compact housing suitable for demanding environments. The pilot light is engineered for low-voltage DC applications and provides reliable signaling in control panels, machines, and equipment interfaces.