MIAMI — LeBron James is getting into the energy business. The Miami Heat star was part of a group that formally announced the launch of a new product Wednesday called Sheets energy strips, a caffeinated product that dissolves when placed on the tongue. Company officials say the strips will be in stores nationwide early next month. The company, Purebrands LLC, lists James as a co-founder, along with his longtime confidant and business partner Maverick Carter and entrepreneurs Warren Struhl and Jesse Itzler.