XR2010S by XNRUSEMI Design and production,in SEHOT CO., LIMITED Spot sales,And can pass SEHOT CO., LIMITED Purchasing。XR2010S Price reference $ 0.050537。XR2010S - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information XR2010S Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial