UV accelerated aging test chamber can simulate environmental conditions such as self-climate ultraviolet rays, rain, high temperature, high humidity, dew condensation, darkness, etc. By reproducing these conditions, it is merged into a cycle, and it automatically executes the number of cycles completed. In this process, the equipment can be used for automatic monitoring of blackboard temperature and water tank temperature; by configuring irradiance measurement and control device (optional), the irradiance can be measured and controlled, and the irradiance is stable at 0.76W/m2/340nm or specified setting. Fixed value, greatly extending the service life of lamps.