Features Proved Light Therapy Technology - Individually 3 lights(bule/red/orange). Blue and red light reducing the existing inflamed breakouts and targeting spots before they appear, blue light targets acne-causing bacteria while red light reduces acne inflammation, the orange light improve the dull-looking skin. , Unlimited Light Treatment Sessions - No activators needed, powered by USB port or portable battery power bank, you can use it as many treatments as you needed, no more extra costs.