The FOS Opera Wash is a professional moving head wash luminaire developed to meet the precise demands of modern stage, studio, and event lighting environments. Built around a powerful 600 watt LED engine comprising RGB, Amber, Lime, and White sources, the FOS Opera Wash delivers high-fidelity light output with a Colour Rendering Index of 96.8, making it particularly suited for applications where accurate colour representation is critical. This fixture is ideal for theatrical productions, broadcast studios, corporate events, and architectural lighting setups that require both versatility and refined optical performance. Its Fresnel lens design with a motorised zoom range from 10 to 47 degrees, combined with a heavy frost insert extending up to 55 degrees, enables uniform wash coverage across variable distances and surfaces. The FOS Opera Wash integrates advanced features including linear CCT control between 1800K and 10000K, an indexable and continuously rotating beam shaper, and four selectable dimmer curves for tailored output response. It supports both 26 and 35-channel DMX control modes, with 16-bit resolution for pan, tilt, colour, and dimmer operations. The inclusion of 78 gel filter emulations further expands creative possibilities while maintaining consistency across lighting schemes. Compact and engineered for low-noise operation, the FOS Opera Wash is a highly adaptable solution that supports the rigorous demands of professional lighting design and control.