The ‌GESTER GT-D02A-1 Air-Cooled Light Fastness Tester‌ is a professional xenon arc instrument for testing colorfastness and light aging of textiles, paint, rubber, plastics, paper, etc. It features a 2500W xenon lamp, multi-mode operations (spray, light-dark cycles, sample rotation), and individual sample timing. With a 25-55°C temperature range, 10-95%RH humidity control, 12 ISO/9 AATCC sample holders, meets international standards such as ISO 105-B02 and AATCC TM16, it offers stable, efficient performance for QA and R&D labs.