Hi, This is my first post here. I am planning to work on small project for my car, wherein I could power up a small inverter which would in turn start a fan / ac in my car. I am just confused on how many panels I would need to accomplish this project. solar panel output 4V -100 ma inverter specs power rating 100W input 12V I think I would need around 1000 this small panels. can anyone please confirm this?