  Objective: This pilot study was done to evaluate the capability of a
prototype low cost blue light emitting diode (LED) phototherapy device in
lowering bilirubin levels among healthy term infants diagnosed with indirect
hyperbilirubinemia.
  Methods: Experimental study on term infants diagnosed with indirect
hyperbilirubinemia in Ospital ng Makati from May 2016 to November 2016 who
underwent phototherapy using the low cost blue LED phototherapy prototype.
  Results: After 24 hours of phototherapy under the prototype LED phototherapy
unit, 16% of the total patients completed treatment as they were already
classified in the low risk zone, and another 36% of patients completed
treatment after 48 hours. The total bilirubin significantly decreased from
baseline bilirubin levels after 24 hours by 16.5% (p = 0.0001). The mean
percentage of change of bilirubin reduced after 48 hours of 29.9% was also
significant. The proportion of subjects in the high risk zone during baseline
to 24th hour went down significantly from 80% to 28% (p = 0.0003), while
comparing baseline to 48th hour, the percentage of high risk zone went down
from 80% to 9.5% (p = 0.0001). No subjects were reported to have rebound
hyperbilirubinemia after discontinuation of phototherapy treatment under the
LED prototype. No patient experienced any complication while on phototherapy
treatment.
  Conclusion: The prototype low cost blue light emitting diode (LED)
phototherapy was able to lower total serum bilirubin among healthy term infants
with indirect hyperbilirubinemia and was safe to use.
