Welcome to this essential guide for the photovoltaic industry! In this video, we are going to dive deep into the operation process of the portable IV tester. Whether you are a professional in the field or someone new to photovoltaic technology, understanding how to properly use a portable IV tester is crucial for accurate and efficient performance testing of photovoltaic modules. This device allows us to quickly and conveniently measure the current-voltage characteristics, which are key indicators of the module's performance. By following the step-by-step instructions in this video, you will gain a comprehensive understanding of how to operate the portable IV tester safely and effectively. So, let's get started and unlock the secrets of this powerful tool in the photovoltaic industry!