Poly Crystalline, which is also called poly or Multi Crystalline. Poly Crystalline solar panels were easily identified by their solar cells that have a textured look resembling a granite countertop or shattered glass. Most poly solar panels just have a dark blue color. Because poly solar panels are easier to produce, they are less expensive.
• Manufacturing produces less waste
• Doesn’t perform as well in low-light conditions
• Not ideal for very limited square footage