The 111-0111-203 is a red, watertight indicator cap from the 111 series, intended for panel mount applications. This cap features a back-frosted lens finish for diffused lighting and is constructed from high-impact polycarbonate with a black nickel bezel. It is designed to fit a 15/32-inch mounting hole and is compatible with indicator bases that accept T-1 3/4 midget flange base incandescent or based LED lamps. The watertight construction makes it suitable for industrial controls, instrumentation, and other equipment where protection from moisture is necessary.