How does BEAUNION check the products' quality?

All products have been
◆ 2160 hours of stability test.
◆ 45°C high temperature environment and high and low temperature cycle tests from -5°C to 40°C challenge product quality with the most severe temperature.
◆ Countless times of actual product testing and trial to ensure product functionality.
◆ Continuous observation of product retention for 3 years after shipment.