PWM (pulse width modulation) dimming is possible, but there have been reports of these dimmers causing electromagnetic interference in medical equipment. Alternatively, use 0-10v dimming.
Prop. 65 Warning
WARNING: This product can expose you to chemicals including Di(2-ethylhexl)pthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov