The AL6H-P4P-R is an LED pilot light featuring a rectangular lens (18mm × 24mm) with integrated LED illumination and built-in current-limiting resistor, rated for 24V AC/DC operation. This oiltight (IP65) unit is part of IDEC's A6 Series 16mm miniature switches and pilot devices, offering compact design with gold-clad silver contacts for reliable low-level switching. The pilot light operates across a temperature range of -25°C to +55°C and is suitable for dustproof and oiltight environments. Common applications include status indication, machine control panels, process monitoring, and industrial automation systems where space-saving, reliable visual feedback is required.