The key updates to the Sunny Boy US-41 product line include: Posted by SMA America, LLC on Nov 6th 2019 This notice provides notification of SMA America’s intention to discontinue production of Sunny Boy US-40 inverters (models: SB x.x-1SP-US-40/ SB x.x-1TP-US-40) in Q3 2019 and switch production to the SMA Sunny Boy US-40 Sunny Boy US-41