Electric or Battery operated. The mirror base has 4 alternating LED lights that change color. Comes with an "off and on" button which also changes the direction of the rotation. Please note: Both the lights and the turn table function with use of the AC adapter. When using just batteries only the lights work (the turn table is disabled to conserve the batteries). Length of base - 3 1/4 inch x height 1 3/4 inch.