12 volt bulbs on 240 volt circuit

[Paulwith]

Hi just seen the bulbs on my outdoor Xmas lights are 12 volt 3 watt on 240 volt circuit. How can they be working? They do!

 

[Carolina]

They're in series or there's a transformer before them

 

[Paulwith]

They're in series or there's a transformer before them

Thanks no transformer, could you explain please

 

[westward10]

They are in series then, 20 lamps at 12v = 240v.