Couldn't last a single charge before burnout. A SMD capacitor on the input side burn with flames. Input voltage was 20V provided from a well filtered and stabilized bench power supply and the current was about 0.5A at the time. Well within the limits of the board. The module is still functional thou. That capacitor is just a filter. Nevertheless DO NOT leave this module out of sight because it could star a fire. I was lucky I was close when it burned.
Received the product as described. To be checked for functions and performance