1 - 150W Max. 3-way switch. 

Dimensions: 31.5" H x 4.5"W (base) 

Shade dimensions: 15" x 15" x 15.5" x 15.5" x 12.25" (square)

Available in:

Antique Brass Finish with Black Glass Accents and Mont Blanc Parchment Square Shade

Antique Brass Finish with Black Glass Accents and Black Painted Opaque Parchment Square Shade

Silver Plate Finish with Grey Glass Accents and White Mont Blanc Parchment Square Shade