The most lights lit simultaneously on a Christmas tree is 194,672 and was achieved by Kiwanis Malmedy / Haute Fagnes Belgium in Malmedy, Belgium, on 10 December 2010.

350 garlands measuring 3 m (9 ft 10 in) long and fitted with 576 lights were hung on the tree. Using voltage calculations, witnesses were able to ascertain exactly how many lights were successfully lit throughout the required 5 minutes.