This maintenance free Sunforce solar panel is designed for grid-tie applications. High-efficiency monocrystalline solar cells are arranged in an 8 x 12 matrix and connected in series. Panel provides 35.2V of max. power and 5.1 Amps. Application: Grid-tie, Watts: 180, Dimensions L x W (in.): 31.85 x 62.20 x 1.6, LED Light: No, Material: Moncrystalline, Panel Type: Grid-tie, Panels (qty.): 1, Battery Included: No Features low iron tempered glass construction with anodized aluminum frame UL listed junction box 31.85in.L x 62.2in.W x 1.6in.H