The HW-LH3 is a lead holder component designed for use with HW-CBL on all illuminated pushbutton units in IDEC's HW Series 22mm IEC-style switches. One HW-LH3 is required for each deck (pair) of contacts in illuminated pushbutton, selector switch, and dual pushbutton configurations. This component integrates into the lamp circuit assembly alongside contact blocks, transformers or full voltage adaptors, mounting adaptors, safety lever locks, lamps, anti-rotation rings, operators, and lenses to form a complete illuminated switch unit. The HW-LH3 supports various illumination options including LED or incandescent lamps with transformer or full voltage operation at multiple voltage levels (6V, 12V, 24V, 120V, 240V, 480V AC/DC). It is compatible with fingersafe, exposed, and spring-up terminal configurations and is essential for constructing modular illuminated switch assemblies across the HW Series product line.