Módulo escalonado automático ZK-SJ20 300W módulo descendente módulo descendente para carga de paneles solares-
300W automatic step up and down module. - For solar panel charging and battery charging. - 1 x Buck Boost Module. - Adjustable output: 1.4-79VDC. - Input: 7-80VDC. - Battery is not included. - LED constant current drive.