Each of the Golden Shields of the Light was a minor Thing of Power. There are 3 in total. One was located under the mountain in the Judgement Place/Arthur's Tomb in Wales, another in the Great Hall Out of Time, and the third in the Lost Land.

Will Stanton uses one in a storm at the end of the Lost Land to save himself and Bran Davies, and it's destroyed. This takes place in Silver on the Tree.