Founded in 1995, Bettersize Instruments is China's No. 1 player in the particle sizing business. With the mission to provide best-in-class analytical instruments for material characterization, comprehensive solutions, and exceptional customer service, Bettersize is dedicated to assisting scientists, researchers, and engineers around the world in understanding material properties, facilitating research, improving production efficiency, and more.

The QUV accelerated weathering tester can be used to test a variety of specimens. Coatings, plastics, and films are easily accommodated in the QUV tester using standard flat panel specimen holders. Other specimens can be mounted using specialty holders. Q-Lab also offers custom specimen holders for unique needs. All of Q-Lab’s panel holders are designed to meet the requirements of ASTM G154, ISO 4892-3, and other international standards.

All of the QUV accelerated weathering tester's lamps emit mainly ultraviolet rather than visible or infrared light, each lamp type differs in the total amount of UV energy emitted and in its wavelength spectrum. Fluorescent UV lamps are usually categorized as UVA or UVB lamps, depending on the region into which most of their output falls.

Founded in 1995, Bettersize Instruments is China's No. 1 player in the particle sizing business. In recent years, Bettersize has gained increasing significance in the global market, offering a wide variety of products from basic to advanced research equipment, delivering precise analysis of materials from nanometer to millimeter.