a light wand includes light emitting diodes that transmit monochromatic light for a therapeutic response . the monochromatic light provides healing and relieves pain from such conditions as , for example , abrasions , cuts , wounds , acne , and other skin conditions . pulsed light and / or a constant light stream are emitted from the wand under the user &# 39 ; s control . intensity of the light energy is also controlled by the user through a control pad on the light wand . the light wand is portable and dimensioned for consumer use .