死火燈 [－－灯]

Jyutping sei2 fo2 dang1
Pinyin sǐ huǒ dēng

Definitions (粵典–words.hk)
  1. 名詞
    一種​汽車​燈號​；​將車​上​面向​左同​向​右​嘅​指示​燈一齊​閃動​，​又​稱​危險​警告​燈​（​量​詞​：​盞​）
    (of vehicles) hazard light; hazard flashers
    • 打死火燈
      打死火灯
      daa2 sei2 fo2 dang1
      to activate hazard flashers
Definitions (Wiktionary)
  1. noun, Hong-Kong
    hazard warning lights (of a car)
    (syn.) 雙閃, 双闪
Examples (粵典–words.hk)
  1. Cantonese
    打死火灯
    打死火燈
    daa2 sei2 fo2 dang1
    • to activate hazard flashers