Beautiful and large Christmas tree lights supplied in a pack of 10 which are powered by batteries and controlled via remote control. The lights are 16cm high and are attached with a clip underneath, which makes it easy to place and attach the lights as you see fit. If more than 10 lights are needed, it is recommended to buy an additional set " Christmas tree lights 5 LED additional set" with item no. 1925-100 . A total of 22 AAA batteries not included. Batteries: 20 AAA batteries for the lights. 2 AAA batteries for the remote control.