The Q-SUN testers’ xenon arc lamps produce the most realistic reproduction of full spectrum sunlight including ultraviolet, visible light and infrared radiation. For many materials, exposure to the full spectrum is necessary to provide an accurate simulation, especially when testing for color change and lightfastness.

Q‑SUN xenon arc test chambers use air-cooled xenon arc lamps to significantly reduce operating and maintenance expenses. Lamp life is guaranteed for most Q-SUN models for 3000 hours at normal irradiance and 1000 hours at high irradiance. Q-SUN models Xe-1 and Xe-2 use one lamp and model Xe-3 uses three.

Changing lamps is quick and easy and does not interfere with the specimen exposure. In the Xe-1 and Xe-3, simply disconnect the plug, release one set screw, and slide out the lamp housing. In the Xe-2, the lamp is easily accessible from the top of the tester.

Replacement only requires the user to open an access door, release a set screw, and remove the trigger finger. The lamp and lamp housing can then be easily lifted out of the tester.