The CIGS Thin-Film Solar Cell is a new type of extremely flexible and durable solar cell. Get long-term benefits with BougeRV CIGS Flexible Solar Panel, which can last for at least 25 years (costing only $23 per year) compared to Mono Semi-Flexible panels that last only 1-3 years (costing $115 per year). Therefore, choosing the CIGS makes you more at ease and gains long-term benefits.