111-0135-203 is a white incandescent panel mount indicator cap designed for use with 15/32" mounting hole assemblies in the 111 series. The cap features a high-impact plastic lens with a transparent finish (finish code 3) and is paired with a black nickel-plated brass base. It accommodates a T-1 3/4 midget flange base incandescent lamp and is compatible with based LED lamps as recommended by Dialight. The indicator is suitable for applications requiring visual status indication in industrial control panels, instrumentation, and equipment monitoring systems where reliable, cost-effective illumination is needed.