I love them! We installed them directly above the outlets. The cable was much longer than needed so we folded the cable and taped it tight. The cable cover juuust fit over the taped bundle.  

The light switch is a twist toggle at the bottom of the last arm under the lampshade. I love that it's part of the design. 

Also, the color is brushed nickel and pale ivory. The lampshade is textured and doesn't look cheap at all. Be careful, the cable cover has sharp edges. 

FYI since bulbs aren't included... We put in 10 watt LED bulbs (60 watt equivalent with incandescent) with E26 base (interchangeable with E27) and 3000K light temperature. Even though it's lower wattage, it's plenty bright for a bedside lamp :) Each bulb was only about $4 from Canadian Tire.