Both arms can be rotated for 360° and the heads for 90°, making it easy to shine the light on your desired items. Could work well in a staircase or illuminating your favourite artwork. Takes 3x e27 light bulb (not included). A standard e26 american/canadian size also fits (tested). Works with 220v as well as 110v. up to 250v (europe/uk standard).the wiring of this item may be original and might need replacement, if not specified otherwise.