There is a Q-Sun model with the capabilities that you need.  Models range from a basic tabletop tester to a full-featured tester with humidity control, water spray and chiller.

The new rotating rackQ-Sun B02 xenon lightfastness tester provides precise control of critical textile test parameters. These include spectrum, irradiance, relative humidity, chamber temperature and black standard temperature.

This model is designed specifically to be an affordable lightfastness tester that meets the requirements of ISO and AATCC. In addition, its capacity is 48% to 92% larger than comparable xenon testers.

Even smaller textile labs now will find fully automatic, xenon lightfastness testing affordable with the less costly Q-Sun B02. All of the features and hardware you need – from irradiance control to specimen holders – come standard, at no extra cost.