Crafted from hand-worked iron and clear glass. 12 sconce uses one 60-watt max E12 bulb (not included). 12 sconce back plate measures 4.5 w x 0.5 d x 4.5 h. 17 sconce uses one 60-watt max E12 bulb (not included). 17 sconce back plate measures 4.5 w x 0.5 d x 4.5 h. 29 sconce uses four 60-watt max E12 bulbs (not included). 29 sconce back plate measures 8 w x 8 d x 13.75 h. Black and white fabric-wrapped Teflon cord measures 7 long. Hardwired; professional installation recommended. Mounting hardware included. Safety tested for use outdoors or in areas with high humidity and moisture.