This Ringlite-Mini system can be powered with its supplied 110/220VAC adapter or with battery power in a range from 9 - 30VDC via a 10ft. XLR power cable. Specific cable connectors allow for on-camera power adaptation. This lamp draws about 40 watts/3.5 amps @ 12VDC. An on-board switching/dimming control allows the camera operator to make the required adjustments. Three circuits determine the illuminated area of the "Ringlite-Mini" – top, center, or bottom sections. Remote dimming is also an option this Ringlite system.