Wal Solar Corporation provides solar products of world top brands with UL listing, TUV certification and long time manufacturer warranty at wholesale prices. Solar panels come in many sizes, colors, performance characteristics and brands. We simply give you the best prices on all of them and as much information on all of them so that you can make the most informed decision on which one is best for you. Solar Panel Availability Alert: Due to unusually high worldwide demand, price and availability may be subject to change. If you're interested in a particular solar panel please call or email us to get up-to-date inventory information. Our in-stock inventory varies widely from day-to-day.