Tecoma x 'Bells of Fire" is apparently the hybrid you purchased. Tecoma stans (Yellow bells) would be one plant of the hybrid Tecoma x capensis, the 'campensis' part referring to a member of the Bignoniaceae (trumpet vine) family not native to North America. In our research we found all kinds of explanations and origins of this plant, but since you already have it, we will try to just answer your basic question. Nurseries can and do give any kind of trade name to plants to make them more attractive for sales. These are common names and we search for the scientific names to help us better understand their sources.
Since this plant, regardless of its parentage, is a member of the Trumpet Vine family, we believe that hummingbirds would definitely be attracted to it. See this article from the American Forest Service on Bird Pollination. It says that hummingbirds like red, yellow and orange, flowers open during the day and tubular flowers. If, as it seems, the 'Bells of Fire' has red or bright orange flowers that would seem to make them a perfect target for hummingbird feeding.
