This Environmental Specialties ES2000 CDML-BT photo stabiity (environmental) chamber is designed for high demand testing, processing, conditioning, or growth applications. 12 cu ft. Temperature range 20-35C. Humidity range 10-96%. This chamber offers a closed loop control scheme. Upon exposure to a programmed light intensity, the sensor feeds back a signal to the panel-mounted controller. The controller regulates the dimming ballasts to produce a light level equal to the control setpoint. The benefit is a steady light level through varying reflective conditions and lamp degradation. You will not only be able to read and record the output level of the light bank, but you will also be assured that the level will remain constant through each cycle with no manual adjustments. The light banks feature a dimming system down to approximately 15% of full output. This allows you to run comparative studies at low and high light intensities. The stainless steel light banks are designed for easy removal, ballast servicing, and for bulb change-outs. The light sensors also feature quick removal. By removing the light banks and sensors, you can run extended temperature ranges (2-70C and 10-96% RH).