The San Francisco-headquartered solar lighting & power products maker has raised $15 million (Rs 100 crore) in Series D round of equity funding from KawiSafi Ventures Fund, Energy Access Ventures, Omidyar Network and NewQuest Capital Partners. Founded in 2006 as a for-profit social enterprise, d.light manufactures and distributes solar lighting and power products designed to serve the more than 2 billion people globally without access to reliable electricity.