DO NOT BUY SOLAR PANELS FROM THIS COMPANY, they are sold through eBay from their factory in China. I bought mine from them because they advertised the panel had a 25 year warranty with long lifetime, stupidly I believed this and used sikaflex to attach it to the canopy of my ute - 5 months later the panel stopped working. I had a licensed electrician confirm that the panel itself was defective - photographic evidence showing this was provided to htpow, I was then instructed to send the panel back to their factory in Shenzhen China and if the panel itself was found to be defective then they would refund me so I did this (costing me more money might I add) only to be told when they received it that it was broken and they cannot exchange it or refund me - completely the opposite of what they said earlier, no doubt their shonky business practices regarding refunds aren't just limited to solar panels so my advice would be steer well clear of this company and buy elsewhere!