Certification: FCC, PSE, METI, UKCA, CE, RoHS, EAC, ERP6 energy efficiency certification, UL2089 test report. Multi-port multi-protocol charging. The display screen alternately displays the charging voltage and charging power of the four ports, battery voltage detection/abnormal reminder. Cigarette lighter expansion port, output: <60W. The host and car charger is connected with the cable.