it is portable,small volume , strong capacity ,long life , good outlooking, the value of it is big .choose it , is right Operating temperature2055Volume155mm×95mm×50mmWeight850gPower2WpOptionLithium battery capacity130Wh/230Wh9Ah/15AhOutput voltageDC/15VOutput power100W maxSuitcaseBlack ABS project plastic mini solar power for notebook