luminaire       
noun [ C ]  electronics specialized uk/ˌluː.mɪˈneər/ us/ˌluː.məˈner/
 电灯
an electric light
  Electricians installed a total of 98 LED luminaires throughout the entire house.  电工在整个房子里总共安装了98盏 LED 灯具。 
 The advanced optical design of the luminaires delivers light exactly where it is needed. 这些灯具的先进光学设计使光线能够精准地照射到需要的地方。 
 - More examples
 - The enormous selection of luminaires available on the market is daunting.
 - The company can offer advice on specialist luminaires for specific applications.
 - This high precision optic luminaire is designed to project an image, logo, decoration or message onto walls, floors or ceilings.