The Light Therapy bed as 3 rows of 7 light therapy LED panels, 2 LED enhancing panels, and 2 acne panel. It used for firming, repairing, and revitalizing the skin cells. Also, the bed has been proven to help with physiological problems such as; SAD, stress, and depression.The acne panel is 415 nm of light and helps deminsh acne and repair the skin.  Go to the Customer Information Guide for more details..