Wow! Where to start? We bought an old camper trailer and we had trouble trying to understand the whole 12volt battery/solar system concept. I watched The Australian Direct video 2 or 3 times until it sunk in. Then we bought the 100amp hour battery, battery box, charger and we travelled thousands of Kms using a solar setup from what we had learned from Australian Direct. We sold the Camper trailer and upgraded to a CUB camper. We transferred all the gear over to the CUB it was so reliable. Then sadly, we sold the Cub with all the Kickass gear included. But our New Hybrid camper will require an inverter and Ive got my eye on their 12v 300W new Solar panel...... I'll be buying again from Australian Direct with total confidence! I love Kickass and recommend it at every chance I get to my camping friends.