Light therapy, also referred to as phototherapy, is the use of light energy, including natural light, artificial light, and laser light, for medical treatment. Hyperbilirubinemia is a condition that is highly risky for newborns. Preborn children are more severely affected. The most effective and technically advanced method of treating infant jaundice is LED phototherapy. Phototherapy equipment addresses hyperbilirubinemia by subjecting the newborn to blue light with a wavelength between 420 & 500 nm. The blood's bilirubin is converted to molecules that may be excreted from the body when exposed to the light in phototherapy equipment.