Sivoia QED (Quiet Electronic Drive) shade system is available in a smaller size. A compact version of the electronic drive fits into a 1 1/2-inch-diameter tube. The product uses the same low-voltage wiring and programming, ensuring that roller shades will raise and lower in uniform speed and stop at preset positions. They can be controlled and programmed using hand-held infrared remote controls or wall-mounted keypads. It controls up to 64 square feet of fabric.