To drive a Led or... How to Drive an RGB LED? RGB LED drivers are becoming more popular choices for applications like audio and voice recognition systems, or Human-Machine Interfaces where LED color and patterns are critical elements of the user-interface. The technique used to control the brightness of an LED is called Pulse Width Modulation or simply PWM. PWM is a technique where the amount of power delivered to a device can be controlled accurately and efficiently. PWM technique can be used to control the brightness of an LED, the speed of a motor or the direction of a servo motor. View rgb_led. View 3x_rgb_driver module. View 10x_5mm rgbled. View 12v_rgbled strip_driver. ./2020. RGB LED 5mm RGB LED. A basic RGB LED driver. Voltage is 5 Volt. ./2020. 3X RGB drivermodule 3X RGB drivermodule. 3X a basic RGB drivermodule. Voltage is 5 Volt. ./2020. 10x 5mm RGB LED 10x 5mm RGB LED. 10X a basic 10x 5mm RGB LED. Voltage is 5 Volt. ./2020. 12V RGB LED strip driver 12V RGB LED strip driver. A basic 12V RGB LED strip driver. Voltage is 12 Volt.