LIXINTIAN Car Cigarette Lighter Female Socket to DC 5.5mm x 2.1mm Plug Jack Adapter，for Car Charger UPS Battery Backup and Portable Generator-(2 Pack)

Got them to use with a Grecell solar generator they work.

Works, thats all it needed to do.

I Like that i can use this item for a portable power station that has a 5.5mmX2.1mm 12 volt output to power 12v Accessories that use a Cigarette Lighter plug Like a portable Electric Fridge,12V DC Air Pump, or any thing that You would normally plug in your cars Cigarette Lighter/Accessory Power Port

Was able to power the tire inflator using my battery bank with DC output.

While its not these things fault, they didnt work for me since what I wanted to use it for, air pump, seems to require more amps than my 12v adapter provides.

Does what it is supposed to do.

Good for low amps applications.