中文在线中文资源,色鲁97精品国产亚洲AV高,亚洲欧美日韩在线一区,国产精品福利午夜在线观看

While pronouncements of the death of incandescent lights are premature, their future is dimming as new technologies offer high efficiencies and lower energy consumption. Solid‐state lighting technology, in particular, is quickly entering the lighting mainstream. Arguably the most prominent and nearest term solid‐state lighting source suitable for general lighting is the ubiquitous LED, albeit a high‐power version.