“I live off grid and use solar power to charge a bank of 12volt batteries. I recent thunderstorm took out my old signal booster so I replaced it with a new Wilson booster. the booster came with an AC charger. I contacted Wilson and they sent me this 12volt to 5volt converter. I runs the booster perfectly. plus the drain on my battery bank is much lower than it would be running through an inverter to get the 5volts. very happy with it.”