鎂光燈 [镁－灯]

Jyutping mei5 gwong1 dang1
Pinyin měi guāng dēng

Definitions (粵典–words.hk)
  1. 名詞
    閃光燈
    (photograph) flash
  2. 名詞
    （​指藝人​、​知名人士​常出現​於​）​傳媒​；​大眾
    the public
Definitions (Wiktionary)
  1. noun
    magnesium lamp
  2. noun, figuratively
    spotlight; limelight