Radio 4 in Four - How much energy do Christmas lights use up? - ÃÛÑ¿´«Ã½ Sounds

Radio 4 in Four - How much energy do Christmas lights use up? - ÃÛÑ¿´«Ã½ Sounds
How much energy do Christmas lights use up?
How much energy do displays waste, and is it a waste if we're brightening our streets?