The Wybron COLORAM II Model 20240 is a dedicated, high-capacity power supply unit engineered specifically to reliably operate and control a series of high-intensity color changers and other compatible lighting accessories within professional theatrical and entertainment environments. Its core function is to convert standard facility AC power into the stable, regulated DC power required by the motors and electronics of these devices, while also providing a sophisticated control interface to execute precise color changes, scroller positioning, and auxiliary functions. This unit represents a critical piece of infrastructure in a lighting system, acting as the centralized power and command hub that bridges the creative instructions from a lighting console with the physical movement of color media on stage. It is designed for installation in dimmer racks or technical booths where its robust performance can support multiple fixtures simultaneously.

A defining characteristic of the Model 20240 is its dual-channel architecture, allowing a single power supply to independently control two separate color changers or accessory strings, maximizing rack space efficiency and simplifying cabling. Each channel delivers ample current to drive multiple high-torque scroll motors, ensuring consistent and accurate media positioning even under the thermal stress of prolonged use adjacent to hot luminaires. The system incorporates intelligent feedback mechanisms that monitor scroller status, providing valuable data on media position and potential errors back to the lighting console for enhanced troubleshooting and show reliability. This closed-loop communication is essential for maintaining show integrity, especially in cue-intensive theatrical productions where a missed color change could disrupt a critical dramatic moment.

The unit interfaces with standard DMX512 control networks, translating digital commands into precise voltage signals that dictate the exact scroll position for each attached device. It is built with professional touring and permanent installation durability in mind, featuring robust connectors, effective thermal management, and protective circuitry against electrical surges and motor stalls. The COLORAM II system, with this power supply at its heart, established a long-standing industry standard for color-changing scenery, providing lighting designers with a dependable, powerful, and precise tool for dynamic visual storytelling through color.