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The Sunricher SR-2108B-M12-5/3 is a 12-channel DMX512/RDM LED controller designed for precise and high-capacity lighting control. It operates on 12–24V DC and supports both master and decoder modes, making it ideal for complex lighting systems. Each of its 12 channels supports up to 5A output, offering strong performance across RGB/RGBW or multi-zone setups. The controller allows users to set PWM frequency from 500Hz to 30kHz and gamma values between 0.1 and 0.9 for smooth dimming. Featuring standard 3-pin and 5-pin XLR DMX connections and a user-friendly digital display, this unit is compatible with DMX512 and RDM protocols and fits seamlessly into professional lighting environments.