21.1 Suspension Lamp21. 1 is composed of a single raw porcelain pendant that attaches to a single canopy. Deep Canopy Standard outside of North America and Latin America. The deep canopy is 4. 5" 116 mm in diameter and 1. 6" 40 mm deep. It is designed for surface mounted applications that cannot use a junction box or ceiling cavity. The canopy is completely enclosed by a back plate, and houses the transformer.