There isn’t a catch. Our PDF really is free.
While we do make a small commission if you were to buy any of our listed products, it isn’t the reason why we provide our solar wiring eBook free of charge.
Creating our camper’s solar system was hard enough (which was only a small part of our total electrical system) and we want to provide a helpful resource for anyone else looking to build their DIY system.
Many don’t have the money to spend on costly eBooks. So by offering our eBook for free, we want to give everyone a chance to review and use our solar wiring diagrams.