Hannatu Yakubu, 23 years, is married and has two children. She lives in Kafin Madaki, a small town in Bauchi State, Nigeria. Since 2017, Hannatu has been running a small shop where she sells household goods. However, for a long time her business premises did not have electricity and it affected her business. She used a dim kerosene lamp to light her shop for a few hours after dusk, yet that was the time she had more customers visiting the shop. She also had another kerosene lamp in her house and the children complained about the smoke from the lamp.