Acne Lamps, Acne Lights and Acne light treatment lights use Blue and Red LED lights as they can treat a large area at one time at a reasonable cost. LED Light Therapy’s monochromatic Blue light is effective in killing Acne vulgaris P. acnes bacteria. Blue 415nm LED light is best for this. If it is over 430nm it is too high and will not kill the bacteria. Red 66nm LED Light Therapy steps up blood circulation that heals the skin faster and makes it healthier so it produces more collagen and elastins. Red LED Light Therapy works great for rejuvenating the skin, anti-aging, reducing fine lines, healing Rosacea, and much more. 525nm Green LED Light Therapy decrease varicose veins, age spots, and pigmentation.