The ETC Sensor SP12 Portable Dimmer Rack is a modular dimming system designed for professional lighting applications in touring productions, studios, and temporary installations. It features 24 dimmer channels, each capable of handling up to 2.4kW, housed within a rugged aluminum and steel enclosure with integrated fan cooling. The rack includes a CEM+ control module for precise dimmer management and supports both DMX512 and Ethernet-based control protocols. Cam-Lok connectors provide secure power input and output, while magnetic circuit breakers and tool-free module replacement enhance operational efficiency. The SP12 configuration offers a compact footprint with reliable performance for demanding environments.