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Each time add an RGBW amplifier, the number of connection LEDs will be more than twice. Lengthen the LED strips and keep the RGBW strong enough. Applicable for various RGBW strip lights, suitable for holidays, event, show exhibition. It is used to receive the RGBW from the LED controller and send the to another group of LED sources. Increases the load capacity of the entire circuit and extends the of the controllers. The RGBW amplifier applies to the voltage controlled LED controller and can receive PWM (Pulse Width Modulation) modulation.