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100% Brand New. The RGB amplifier applies to the voltage-controlled LED controller It receives PWM (Pulse Width Modulation) signal and extend your lights quantity. Mainly use for RGB LED strips to double the strips length Use for extend 40 meters of SMD5050 30LEDs/m RGB LED Strips or 20 meters of SMD5050 60 LEDs/m RGB LED Strips, Manufacturer: Create Idea