sentences:  The United States Department of Energy made several reports available on the results of many pilot projects for municipal outdoor lighting, and many additional streetlight and municipal outdoor lighting projects soon followed.LED lamps are often made with arrays of surface mount LED modules (SMD modules) that replace incandescent or compact fluorescent lamps, mostly replacing incandescent lamps rated from 5 to 200 watts.A significant difference from other light sources is that the light is more directional, i.e., emitted as a narrower beam.