Outdoor product reliability testing of MiaSolé Glass-Glass CIGS Modules in different external environments is an important aspect of determining the overall product durability and quality. The multi-year performance of MiaSolé modules in several different test regions will be presented. MiaSolé has implemented outdoor testing in Dry and Hot region (Phoenix, Arizona); Hot and Humid (Miami, Florida); Seasonally Cold with Snowfall (Medina, Ohio) and at MiaSolé Headquarters in Santa Clara, CA. MiaSolé used a second party to perform the outdoor testing in Arizona, Florida, and Ohio. We will review the details of the test site setup, installation, on-site implementation, data transfer and analysis methodology.