This unit will not operate without the purchase of its partner Remote Control - item LEDRMT11. (One remote control is all you need for many lights. For event planners we recommend two remote controls.) Battery powered and operated with a remote control, this light features 12 Super-Efficient warm yellow LED bulbs that produce a warm 33 lumens glow to illuminate your lanterns. This wireless lighting is easy to use; simply clip inside the lanterns and turn them all on with one simple click of the remote! Included with each light is a 10-inch elastic cord for hanging. Illuminates lanterns from 12 to 26 inches. Runs on 3 AAA batteries (not included). 8+ hours of continuous illumination! Remote Control is sold separatelyis sold separately.