Product Description: This series of solar panels consists of 28pcs, 156mm*156mm poly-crystalline silicon solar cells which are in high efficiency, individually characterized and electronically matched before interconnection. Features: High-efficiency solar cell ensures high performance of solar module and creates more power in peak hours ; Anti-reflecting coating and high-transmission rate glass increases the power output and mechanical strength of solar module ; Torsion and corrosion-resistant anodized frame ensures dependable performance, even through harsh weather conditions ; Lightweight and pre-drilled mounting holes for easy installation ; Water-resistant junction box ; Designed specially to meet customers demands for residential, commercial, and industrial use .