EVP20-12-B1 by B B Battery Design and production,in Spot sales,And can pass Purchasing。EVP20-12-B1 Price reference $ 108.886800。EVP20-12-B1 - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information EVP20-12-B1 Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial