反射型户外投光灯

灯泡（light bulb），指通过电能而发光发热的照明源，1854年由亨利·戈培尔发明，而托马斯·阿尔瓦·爱迪生找到了更合适的材料研制出白炽灯。
伴随社会的发展，对灯泡的利用也起着不同的变化，最初可能是为了生产生活提供便利，但随着社会的进步，在灯泡的使用上也有了明显的变化，开始有了“汽车、美化环境、装饰”等等不同用途的功能性用灯。

关键词：灯泡

The light bulb, which refers to a source of illumination that emits light and heat through electricity, was invented by Henry Goebbels in 1854, and Thomas Alva Edison found a more suitable material to develop an incandescent lamp.
With the development of society, the use of light bulbs has also undergone different changes. It may have been for the convenience of production and life at first, but with the progress of society, there have also been obvious changes in the use of light bulbs, and there have been "automobiles, beautification". Functional lamps for different purposes such as environment, decoration, etc.