Sam Goldman founded D.light, a company that designs affordable solar lights, to provide lighting to people living in poverty. After being bitten by a snake in a poorly lit hut in West Africa, he was inspired to create cheap and durable solar lights. D.light's products are now used by over 30 million people across 40 countries. While Goldman faced some challenges in harsh rural environments during development, the company was well-received and faced relatively little difficulty achieving its goal of improving access to lighting for those in poverty.