TSSS Data Repeater RGB Signal Amplifier For SMD 3528 5050 LED Strip Light, DC 12V 12A, 2 years warranty RGB Amplifier is used for all our company RGB LED controller. It can accept PWM signal. When adding one RGB amplifier, it can connect to more than double of the number led lights. In theory , RGB amplifier can be connected to numerous. This product warranty is 2 years