Methods: In a clinical randomized multicenter trial 116 newborns with non-hemolytic hyperbilirubinemia, gestational age \>33+0, weight \>1800g and no other significant neonatal diagnose will be randomized. All infants will receive 12 hours double therapy with a biliblanket and overhead light providing an intensity of either 40-, 55- or 70 µW/cm2/nm. Three groups will be treated with continuous phototherapy while a fourth group will receive intermittent phototherapy of 1,5 hours cycled intervals with an intensity of 70 µW/cm2/nm. Parental experiences during treatment will be examined through a survey post treatment. The study has been approved by the Regional Research Ethics Committee. Perspectives: Understanding the dose-response relationship of phototherapy will give an insight in the most effective way of treating neonatal jaundice. Intermittent therapy, if proven non-inferior, could facilitate more intimacy in the parent-infant relationship as well as benefits in initiating breastfeeding