1) Innovative combination: USB charger and Car battery tester 
2) MAX 2.5 A output fits every mobile device 
3) 2/4 USB ports satisfy different devices charging at the same time 
4) 12V/24V auto switch function

Input Voltage12V/24V DC
Output Voltage5V
Output Current 4ports 5A(MAX)
Operating Temperature0~40 degree
Storage Temperature-30~70 degree
Short circuit protectionYES
Overload protectionYES
USB portsTP-25TC USB x 4
FuseTP-25TC 3A
LEDLED*3(green/yellow/red)