The HDJD-J822 controls the proportion of light from three color light sources. These three color light sources come from red LED, green LED, and blue LED. Each color can be a single LED or an array of LEDs. These light sources are mixed to produce a resultant color. The mixing is done using optical components such as light guides or light panels. The light from all the LEDs must be thoroughly mixed. A sample of the mixed light provides the optical feedback, which is sensed by a color sensor with three channels, channel X, channel Y and channel Z. Normally, the channel X consists of the red part of the color sensor, channel Y consists of green part of the color sensor, and channel Z consists of blue part of the color sensor. The optical feedback allows the HDJD-J822 controller to produce a resultant color accurately. The color and brightness are maintained by adjusting each of the pulse width modulation, PWM_R, PWM_G, and PWM_B of the light sources. A one time factory calibration provides the correlation between the CIE camera measurement and the color sensor used. The correlation will allow color to be specified in the CIE X, Y, Z color space, or related color spaces such as Yxy, Yu’v’, and RGB. The calibration also ensures that accurate color and brightness matching is achieved when the same input set point is given to any HDJD-J822 based system.