From:  Open-source light calibration system for hyperbilirubinemia phototherapy treatments

 Light meter responses as a function of distance from a Photo-Therapy 4000 Jaundice Management machine.

Distance from light
(cm)
OS light meter
(uW/cm2/nm)
MTTS
(uW/cm2/nm)
Error
2018.4210.124
2536.6360.017
3045.05420.073
4050.05510.019
5068.18690.012
6079.3790.004