Two architecture students from Chicago, Andrea Sreshta and Anna Stork, are the inventors of LuminAID, a solar-powered inflatable light originally designed for natural disasters. The fully-charged light which can provide up to 16 hours of LED light can also be used for recreational purposes like camping. Sreshta and Stork pitched their business on Shark Tank in 2015. When billionaire Mark Cuban offered them $200,000 in exchange for 15 percent equity, they accepted.
http://2paragraphs.com/2017/08/luminaid-what-happened-after-200k-mark-cuban-shark-tank-deal/