The architectural Shutter Led task collection has a beautiful matte black finish with a 10 Watt LED that gives off a crisp white light. The lamp is an excellent light source to enhance clarity and contrast to improve sharpness while reading, crafting, and working on computers. They have a very stylishly vented shade. Shades on both lamps are 4 in diameter, with toggle switch on the underside. Shades rotate 360 horizontally. It is 13 length from base joint to center joint, 12 length from center joint to rotating shade. Height adjusts from 12 to 24; 16 to 18 Depth. Flat base: 7.5 Diameter. Metal.