This Rotatable Spotlight Wall Light is made of all copper components for superior durability. It features an omnidirectional head that can be rotated to your desired angle, with 2, 3, and 4 light heads available. This design ensures perfect illumination to accentuate any room's decor. What does it mean to set of 2?It simply means that there are two lights, each with the separate quantity indicated, in the order & packaged together. If you have any questions about our products, please contact us