Small Solar Panel in stock Specification100w/36v Materialmono Max voltage: (Vmp)18 Max current (Imp)5.56 Open circuit voltage (Voc)21.60 Short circuit current (Isc)5.89 Weight7.1 Size963x805x35mm The type of solar panel system you chose will greatly affect the cost. Grid-tie, grid-tie solar and energy storage, and off-grid solar are all options differ in price. Remember, the best solar panels for your property will fulfill your needs and meet your price point. Let鈥檚 break down the primary purpose of each system: Grid-tie: You have access to the utility grid. Your primary goal is to save money on your electric bill Grid-tie solar and energy storage: You have access to the utility grid and your primary goal is to have backup power when there is an outage. Off-grid: You do not have access to the utility grid. Your primary goal is to live where it is not accessible. Once you identify your goals, you can make a final decision based on price.Guarantee = 5 years solar suppliers: Xufeng Solar Co., LtdSmall Solar Panel in stock website:http://www.nbnewsolar.com/small-solar-panels/