Procedures
The study intervention was an indoor solar lighting system that cost 565 000 Ugandan shilling (UGX) (approximately 150 US dollars (US$) at the time the study was conducted), obtained from a local vendor based in Mbarara township. These lighting systems were deployed in the intervention households between February and April 2018. The solar system consisted of a 30 W-peak (Wp) solar panel, 18 Amp-hour (Ah) battery, five Amp charge controller, four lighting points, installation services, and a two-year service warranty. Participants selected the location for each of the four bulbs in their homes. To evaluate the possibility that light rationing was present at baseline, we used sensors to monitor use of kerosene-based lighting and the intervention indoor solar lighting system as previously described [