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Overview: The RGB LED module or individual LED can create any color by combining the Red,Green,Blue (RGB) Led. By driving each LED, with a PWM digital signal, you can create any color. PWM input voltage can be adjusted in three primary colors (red / blue / green) strength in order to achieve full color mixing effect. Control module with Arduino cool lighting effects can be achieved. Operating voltage is typically 3.3V to 5V. If using a individual RGB LED, be sure to add a limiting resistor. Many RGB LED are common cathode drive, but check the specific RGB LED configuration and specification.