* Zoomable The beam angle is adjustable, Zoomable.it can project a spot light on the flat. * 3 colors can be chosen It is single color for one light, you can choose the color for it. Warm White(3000K)Natural White(4000K)Pure White(6000K) * Adjustable Cable The max length of the cord is 84cm/ 33 inches. The length of the cable is adjustable. Installation This fixture does need to be hard wired. Professional installation is recommended. Steps to install: Use a screwdriver to screw out the bolts which connected the mounting base and main fixture. Connect the power cords of the ceiling lamp to the 110V or 220V circuits (no distinction between the live line and zero line, one for live line and the other for zero line. If the wires were pretty long, please roll into a circle and place in a vacant position in lamp-chimney). Fix the mounting base on the ceiling (wooden wall, using self-tapping screw to fix; cement wall, drill holes to install.). Put the main fixture onto the mounting base, aim at the bolt hole, then fix the screws.