Checking product parameters and quality is an important component of the manufacturing process. It intends to reveal defects in finished products and to check their reliability during the production process. The purpose of this article is to familiarise a broad range of specialists with the experience of Svetlana-Optoelectronics Company Group in the product check process for light emitting diodes and their compound lighting products, and with its ideas and proposals on the product quality control and quality confirmation.