deng1 tau4釘頭钉头

Jyutpingdeng1 tau4

Yaledēng tàuh

Definition

Bayonet mount; a type of light bulb socket with protruding metal pins on both sides.

colloquialhomeother

How it's used

Refers specifically to the bayonet style base where the bulb is pushed in and twisted to lock into place. It is distinct from the screw type base known as 螺絲頭. You will mostly hear this term in hardware stores or when discussing home lighting fixtures.

Measure word

go3個go

Examples

ni1呢go3個dang1燈daam2膽hai6係deng1釘tau2頭lai2嚟㗎，gaa2你nei5買maai5錯co3咗zo2喇。

This light bulb is a bayonet mount type, you bought the wrong one.

nei5你tai2睇haa6下go3個dang1燈zo2座hai6係mai6咪deng1釘tau2頭，m4唔hai6係zau6就zong1裝m4唔dou3到。

Check if the lamp socket is a bayonet mount, otherwise it won't fit.

Related words

antonymlo4 si1 tau2螺絲頭lòh sī táusee alsodang1 daam2燈膽dāng dám

Common phrases

deng1釘tau2頭dang1燈daam2膽

bayonet mount light bulb

wun6換deng1釘tau2頭

change a bayonet mount bulb

Common mistake

Do not confuse this with 螺絲頭, which is the standard screw-in base. Always check the socket type before buying a replacement bulb to ensure it matches.