PLB4LB-012 is a 30 mm metal pilot light equipped with an LED bulb, designed for panel indication applications. This indicator light features a red lens color and operates at 12V AC/DC voltage. The unit has a diameter of approximately 35 mm (1.4 in) and a depth of 25 mm (1.0 in), with a maximum panel thickness of 6 mm (0.25 in). The pilot light includes rubber washers for secure panel mounting. Common applications include control panels, machinery status indication, and industrial equipment where reliable visual signaling is required.