This document is a test report summarizing corrosion resistance testing of diving lights from Shenzhen Yeguang Technology Co., Ltd. It includes: - Details of the sample, applicant, manufacturer, test items, and test dates - Results showing the samples passed a CASS (Corrosion Accelerated Salt Spray) test without any visual damage after 48 hours in a salt spray chamber at 50°C with NaCl and CuCl2 fog - Descriptions of the CASS test method and pass/fail criteria used to evaluate the samples